// Core styles that can be used to apply material design treatments to any element.
@mixin np-a11y {
  .np-visually-hidden {
    border: 0;
    clip: rect(0 0 0 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    text-transform: none;
    width: 1px;
  }
}
// Implement the rem unit with SCSS so we don't have to actually set a font-size on
// the user's body element.
@function rem($multiplier) {
  $font-size: 10px;
  @return $multiplier * $font-size;
}


// Typography
$np-body-font-size-base: rem(1.4) !default;
$np-font-family: Roboto,
'Helvetica Neue',
sans-serif !default;

// Media queries
$np-xsmall: 'max-width: 600px';

// TODO: Revisit all z-indices before beta
// z-index master list

$z-index-fab: 20 !default;
$z-index-drawer: 100 !default;

// Overlay z indices.
$np-z-index-overlay: 1000;
$np-z-index-overlay-container: 1;
$np-z-index-overlay-backdrop: 1;


// Global constants
$pi: 3.14159265;

// Padding between input toggles and their labels
$np-toggle-padding: 8px !default;
// Width and height of input toggles
$np-toggle-size: 20px !default;

// Easing Curves
// TODO: all of these need to be revisited

// The default animation curves used by material design.
$np-linear-out-slow-in-timing-function: cubic-bezier(0, 0, 0.2, 0.1) !default;
$np-fast-out-slow-in-timing-function: cubic-bezier(0.4, 0, 0.2, 1) !default;
$np-fast-out-linear-in-timing-function: cubic-bezier(0.4, 0, 1, 1) !default;

$ease-in-out-curve-function: cubic-bezier(0.35, 0, 0.25, 1) !default;

$swift-ease-out-duration: 400ms !default;
$swift-ease-out-timing-function: cubic-bezier(0.25, 0.8, 0.25, 1) !default;
$swift-ease-out: all $swift-ease-out-duration $swift-ease-out-timing-function !default;

$swift-ease-in-duration: 300ms !default;
$swift-ease-in-timing-function: cubic-bezier(0.55, 0, 0.55, 0.2) !default;
$swift-ease-in: all $swift-ease-in-duration $swift-ease-in-timing-function !default;

$swift-ease-in-out-duration: 500ms !default;
$swift-ease-in-out-timing-function: $ease-in-out-curve-function !default;
$swift-ease-in-out: all $swift-ease-in-out-duration $swift-ease-in-out-timing-function !default;

$swift-linear-duration: 80ms !default;
$swift-linear-timing-function: linear !default;
$swift-linear: all $swift-linear-duration $swift-linear-timing-function !default;


// Basic Colors
$navy: #1ab394; // Primary color
$dark-gray: #c2c2c2; // Default color
// $gray: #5f5f5f;
$blue: #1c84c6; // Success color
$lazur: #2CC5C6; // Info color
$yellow: #f8ac59; // Warrning color
$red: #ED5565; // Danger color
$black: #333333;
// Various colors
$text-color: #666666; // Body text
$gray: #f3f3f4; // Background wrapper color
$light-gray: #D1DADE; // Default label, badget
$label-badget-color: #5E5E5E;
$light-blue: #f3f6fb;
// Spiner color and margin
$spin-color: $navy;
$spin-margin: 0 auto;
// IBOX colors ( default panel colors)
$border-color: #e7eaec; // IBox border
$ibox-title-bg: #ffffff; // IBox Background header
$ibox-content-bg: #ffffff; // IBox Background content
//Sidebar width
$sidebar-width: 220px;
// Boxed layout width
$boxed-width: 1200px;
// $boxed-backgound: url('patterns/shattered.png');
//Border radius for buttons
$btn-border-radius: 5px;
//Navigation
$nav-bg: #2F4050;
$nav-text-color: #a7b1c2;
// 按钮相关
$btn-disable-bg: #999;
$btn-disable-color: #fafafa;

.flex-wrap {
  display: flex;
}

.col-flex {
  flex-direction: column;
}

.row-flex {
  flex-direction: row;
}

.middle-flex {
  justify-content: center;
  align-items: center;
}

.np-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  width: 100%;
}

.np-column {
  display: flex;
  flex-direction: column;
  flex-basis: 100%;
  flex: 1;
}

.backdrop-transparent {
  opacity: 0;
}

@mixin np-controls-color($color, $suffix) {

  .np-controls-color#{if($suffix == '', '', '-' + $suffix)} {
    background-color: np-color($color);

    &:hover {
      background-color: darken(np-color($color), 5%);
    }
  }
}



// A collection of mixins and CSS classes that can be used to apply elevation to a material
// element.
// See: https://www.google.com/design/spec/what-is-material/elevation-shadows.html
// Examples:
//
//
// .np-foo {
//   @include $np-elevation(2);
//
//   &:active {
//     @include $np-elevation(8);
//   }
// }
//
// <div id="external-card" class="np-elevation-z2"><p>Some content</p></div>
//
// For an explanation of the design behind how elevation is implemented, see the design doc at
// https://goo.gl/Kq0k9Z.

// Colors for umbra, penumbra, and ambient shadows. As described in the design doc, each elevation
// level is created using a set of 3 shadow values, one for umbra (the shadow representing the
// space completely obscured by an object relative to its light source), one for penumbra (the
// space partially obscured by an object), and one for ambient (the space which contains the object
// itself). For a further explanation of these terms and their meanings, see
// https://en.wikipedia.org/wiki/Umbra,_penumbra_and_antumbra.

$_umbra-color: rgba(black, 0.2);
$_penumbra-color: rgba(black, 0.14);
$_ambient-color: rgba(black, 0.12);

// Maps for the different shadow sets and their values within each z-space. These values were
// created by taking a few reference shadow sets created by Google's Designers and interpolating
// all of the values between them.

$_umbra-elevation-map: (
  0: '0px 0px 0px 0px #{$_umbra-color}',
  1: '0px 2px 1px -1px #{$_umbra-color}',
  2: '0px 3px 1px -2px #{$_umbra-color}',
  3: '0px 3px 3px -2px #{$_umbra-color}',
  4: '0px 2px 4px -1px #{$_umbra-color}',
  5: '0px 3px 5px -1px #{$_umbra-color}',
  6: '0px 3px 5px -1px #{$_umbra-color}',
  7: '0px 4px 5px -2px #{$_umbra-color}',
  8: '0px 5px 5px -3px #{$_umbra-color}',
  9: '0px 5px 6px -3px #{$_umbra-color}',
  10: '0px 6px 6px -3px #{$_umbra-color}',
  11: '0px 6px 7px -4px #{$_umbra-color}',
  12: '0px 7px 8px -4px #{$_umbra-color}',
  13: '0px 7px 8px -4px #{$_umbra-color}',
  14: '0px 7px 9px -4px #{$_umbra-color}',
  15: '0px 8px 9px -5px #{$_umbra-color}',
  16: '0px 8px 10px -5px #{$_umbra-color}',
  17: '0px 8px 11px -5px #{$_umbra-color}',
  18: '0px 9px 11px -5px #{$_umbra-color}',
  19: '0px 9px 12px -6px #{$_umbra-color}',
  20: '0px 10px 13px -6px #{$_umbra-color}',
  21: '0px 10px 13px -6px #{$_umbra-color}',
  22: '0px 10px 14px -6px #{$_umbra-color}',
  23: '0px 11px 14px -7px #{$_umbra-color}',
  24: '0px 11px 15px -7px #{$_umbra-color}'
);

$_penumbra-elevation-map: (
  0: '0px 0px 0px 0px #{$_penumbra-color}',
  1: '0px 1px 1px 0px #{$_penumbra-color}',
  2: '0px 2px 2px 0px #{$_penumbra-color}',
  3: '0px 3px 4px 0px #{$_penumbra-color}',
  4: '0px 4px 5px 0px #{$_penumbra-color}',
  5: '0px 5px 8px 0px #{$_penumbra-color}',
  6: '0px 6px 10px 0px #{$_penumbra-color}',
  7: '0px 7px 10px 1px #{$_penumbra-color}',
  8: '0px 8px 10px 1px #{$_penumbra-color}',
  9: '0px 9px 12px 1px #{$_penumbra-color}',
  10: '0px 10px 14px 1px #{$_penumbra-color}',
  11: '0px 11px 15px 1px #{$_penumbra-color}',
  12: '0px 12px 17px 2px #{$_penumbra-color}',
  13: '0px 13px 19px 2px #{$_penumbra-color}',
  14: '0px 14px 21px 2px #{$_penumbra-color}',
  15: '0px 15px 22px 2px #{$_penumbra-color}',
  16: '0px 16px 24px 2px #{$_penumbra-color}',
  17: '0px 17px 26px 2px #{$_penumbra-color}',
  18: '0px 18px 28px 2px #{$_penumbra-color}',
  19: '0px 19px 29px 2px #{$_penumbra-color}',
  20: '0px 20px 31px 3px #{$_penumbra-color}',
  21: '0px 21px 33px 3px #{$_penumbra-color}',
  22: '0px 22px 35px 3px #{$_penumbra-color}',
  23: '0px 23px 36px 3px #{$_penumbra-color}',
  24: '0px 24px 38px 3px #{$_penumbra-color}'
);

$_ambient-elevation-map: (
  0: '0px 0px 0px 0px #{$_ambient-color}',
  1: '0px 1px 3px 0px #{$_ambient-color}',
  2: '0px 1px 5px 0px #{$_ambient-color}',
  3: '0px 1px 8px 0px #{$_ambient-color}',
  4: '0px 1px 10px 0px #{$_ambient-color}',
  5: '0px 1px 14px 0px #{$_ambient-color}',
  6: '0px 1px 18px 0px #{$_ambient-color}',
  7: '0px 2px 16px 1px #{$_ambient-color}',
  8: '0px 3px 14px 2px #{$_ambient-color}',
  9: '0px 3px 16px 2px #{$_ambient-color}',
  10: '0px 4px 18px 3px #{$_ambient-color}',
  11: '0px 4px 20px 3px #{$_ambient-color}',
  12: '0px 5px 22px 4px #{$_ambient-color}',
  13: '0px 5px 24px 4px #{$_ambient-color}',
  14: '0px 5px 26px 4px #{$_ambient-color}',
  15: '0px 6px 28px 5px #{$_ambient-color}',
  16: '0px 6px 30px 5px #{$_ambient-color}',
  17: '0px 6px 32px 5px #{$_ambient-color}',
  18: '0px 7px 34px 6px #{$_ambient-color}',
  19: '0px 7px 36px 6px #{$_ambient-color}',
  20: '0px 8px 38px 7px #{$_ambient-color}',
  21: '0px 8px 40px 7px #{$_ambient-color}',
  22: '0px 8px 42px 7px #{$_ambient-color}',
  23: '0px 9px 44px 8px #{$_ambient-color}',
  24: '0px 9px 46px 8px #{$_ambient-color}'
);


// The css property used for elevation. In most cases this should not be changed. It is exposed
// as a variable for abstraction / easy use when needing to reference the property directly, for
// example in a will-change rule.
$np-elevation-property: box-shadow !default;

// The default duration value for elevation transitions.
$np-elevation-transition-duration: 280ms !default;

// The default easing value for elevation transitions.
$np-elevation-transition-timing-function: $np-fast-out-slow-in-timing-function;

// Applies the correct css rules to an element to give it the elevation specified by $zValue.
// The $zValue must be between 0 and 24.
@mixin np-elevation($zValue) {
  @if type-of($zValue) != number or not unitless($zValue) {
    @error '$zValue must be a unitless number';
  }
  @if $zValue < 0 or $zValue > 24 {
    @error '$zValue must be between 0 and 24';
  }

  #{$np-elevation-property}: #{map-get($_umbra-elevation-map, $zValue)},
                             #{map-get($_penumbra-elevation-map, $zValue)},
                             #{map-get($_ambient-elevation-map, $zValue)};
}

// Returns a string that can be used as the value for a transition property for elevation.
// Calling this function directly is useful in situations where a component needs to transition
// more than one property.
//
// .foo {
//   transition: np-elevation-transition-property-value(), opacity 100ms ease;
//   will-change: $np-elevation-property, opacity;
// }
@function np-elevation-transition-property-value(
    $duration: $np-elevation-transition-duration,
    $easing: $np-elevation-transition-timing-function) {
  @return #{$np-elevation-property} #{$duration} #{$easing};
}

// Applies the correct css rules needed to have an element transition between elevations.
// This mixin should be applied to elements whose elevation values will change depending on their
// context (e.g. when active or disabled).
//
// NOTE(traviskaufman): Both this mixin and the above function use default parameters so they can
// be used in the same way by clients.
@mixin np-elevation-transition(
    $duration: $np-elevation-transition-duration,
    $easing: $np-elevation-transition-timing-function) {
  transition: np-elevation-transition-property-value($duration, $easing);
  will-change: $np-elevation-property;
}

// 

@mixin np-overlay() {
  $np-backdrop-color: np-color($np-grey, 900);

  // TODO: change from the `md` prefix to something else for everything in the toolkit.

  // The overlay-container is an invisible element which contains all individual overlays.
  .np-overlay-container {
    position: absolute;

    // Disable events from being captured on the overlay container.
    pointer-events: none;

    // The container should be the size of the viewport.
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    z-index: $np-z-index-overlay-container;
  }

  // A single overlay pane.
  .np-overlay-pane {
    position: absolute;
    pointer-events: auto;
    box-sizing: border-box;
    z-index: $np-z-index-overlay;
  }

  .np-overlay-backdrop {    
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;

    z-index: $np-z-index-overlay-backdrop;
    pointer-events: auto;

    // TODO: figure out if there are actually spec'ed colors for both light and dark
    // themes here. Currently using the values from Angular Material 1.
    transition: opacity $swift-ease-out-duration $swift-ease-out-timing-function;
    background: $np-backdrop-color;
    opacity: 0;
  }

  .np-overlay-backdrop.np-overlay-backdrop-showing {
    opacity: 0.48;
  }
}

$np-ripple-focused-opacity: 0.1;
$np-ripple-background-fade-duration: 300ms;
$np-ripple-background-default-color: rgba(0, 0, 0, 0.0588);
$np-ripple-foreground-initial-opacity: 0.25;
$np-ripple-foreground-default-color: rgba(0, 0, 0, 0.0588);


@mixin np-ripple() {
  // The host element of an np-ripple directive should always have a position of "absolute" or
  // "relative" so that the ripple divs it creates inside itself are correctly positioned.
  [np-ripple] {
    overflow: hidden;
  }

  [np-ripple].np-ripple-unbounded {
    overflow: visible;
  }

  .np-ripple-background {
    background-color: $np-ripple-background-default-color;
    opacity: 0;
    transition: opacity $np-ripple-background-fade-duration linear;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
  }

  .np-ripple-unbounded .np-ripple-background {
    display: none;
  }

  .np-ripple-background.np-ripple-active {
    opacity: 1;
  }

  .np-ripple-focused .np-ripple-background {
    opacity: 1;
  }

  .np-ripple-foreground {
    background-color: $np-ripple-foreground-default-color;
    border-radius: 50%;
    pointer-events: none;
    opacity: $np-ripple-foreground-initial-opacity;
    position: absolute;
    // The transition duration is manually set based on the ripple size.
    transition: opacity, transform 0ms cubic-bezier(0, 0, 0.2, 1);
  }

  .np-ripple-foreground.np-ripple-fade-in {
    opacity: 1;
  }

  .np-ripple-foreground.np-ripple-fade-out {
    opacity: 0;
  }
}

@mixin np-ripple-theme($theme) {
  $accent: map-get($theme, accent);

  .np-ripple-focused .np-ripple-background {
    background-color: np-color($accent, $np-ripple-focused-opacity);
  }
}


// A mixin, which generates temporary ink ripple on a given component.
// To be removed once the real ripple is applied to all elements.
// When $bindToParent is set to true, it will check for the focused class on the same selector as you included
// that mixin.
// It is also possible to specify the color palette of the temporary ripple. By default it uses the
// accent palette for its background.
@mixin np-temporary-ink-ripple($component, $bindToParent: false) {
  // TODO(mtlin): Replace when ink ripple component is implemented.
  // A placeholder ink ripple, shown when keyboard focused.
  .np-ink-ripple {
    border-radius: 50%;
    opacity: 0;
    height: 48px;
    left: 50%;
    overflow: hidden;
    pointer-events: none;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: opacity ease 280ms, background-color ease 280ms;
    width: 48px;
  }

  // Fade in when radio focused.
  #{if($bindToParent, '&', '')}.np-#{$component}-focused .np-ink-ripple {
    opacity: 1;
  }

  // TODO(mtlin): This corresponds to disabled focus state, but it's unclear how to enter into
  // this state.
  #{if($bindToParent, '&', '')}.np-#{$component}-disabled .np-ink-ripple {
    background-color: #000;
  }
}


// Mixin that renders all of the core styles that are not theme-dependent.
@mixin np-core() {

  // Provides external CSS classes for each elevation value. Each CSS class is formatted as
  // `np-elevation-z$zValue` where `$zValue` corresponds to the z-space to which the element is
  // elevated.
  @for $zValue from 0 through 24 {
    .np-elevation-z#{$zValue} {
      @include np-elevation($zValue);
    }
  }

  @include np-ripple();
  @include np-a11y();
  @include np-overlay();
}

// Mixin that renders all of the core styles that depend on the theme.
@mixin np-core-theme($theme) {
  @include np-ripple-theme($theme);
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-button-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-button-wrapper {
    user-select: none;

    &.button-primary {
      background-color: np-color($primary);
      color: white;

      &:hover,
      &:focus {
        background-color: darken(np-color($primary), 3%);
      }

      &:active,
      &.active {
        background-color: darken(np-color($primary), 8%);
      }

      &:hover,
      &:focus,
      &:active,
      &.active {
        border-color: np-color($foreground, divider);
        color: white;
      }
    }

    &.button-secondary {
      background-color: np-contrast($primary, 500);
      border-color: np-color($primary);
      color: np-color($primary);

      &:hover,
      &:focus {
        background-color: darken(np-color($primary), 3%);
      }

      &:active,
      &.active {
        background-color: darken(np-color($primary), 8%);
      }

      &:hover,
      &:focus,
      &:active,
      &.active {
        border-color: np-color($foreground, divider);
        color: white;
      }
    }

    &.button-disabled {

      &,
      &:hover,
      &:focus,
      &:active,
      &.active {
        background-color: np-color($background, disabled-button) !important;
        color: np-color($foreground, disabled-text) !important;
        border-color: np-color($foreground, divider);
      }
    }

    &.button-default {
      background: np-color($background, background);
      border-color: np-color($foreground, control);
      color: np-color($foreground, control);

      &:hover,
      &:focus {
        color: np-color($foreground, control);
      }

      &:active,
      &.active {
        color: np-color($foreground, control);
      }
    }

    &.button-cancel,
    &.button-search {
      color: white;
      background-color: #444444;

      &:hover,
      &:focus {
        background-color: lighten(#444444, 3%);
        border-color: #444444;
        color: white;
      }

      &:active,
      &.active {
        background-color: lighten(#444444, 8%);
        border-color: #444444;
        color: white;
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-checkbox-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-checkbox-button-wrapper {
    color: np-color($foreground, text);

    span.input-helper {
      border: 1px solid np-color($primary);
    }

    .checkbox.checkbox-checked+span::after {
      background: np-color($primary);
    }

    .checkbox.checkbox-forbiddenColor+span::after {
      background: np-color($background, disabled-button);
    }

    span.input-helper.checkbox-forbiddenColor {
      border-color: np-color($background, disabled-button) !important;
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-input-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-input-wrapper {
    color: np-color($foreground, text);

    .form-required {
      color: np-color($warn);
      vertical-align: middle;
    }

    .error-message {
      color: np-color($warn);
    }

    .disabled {
      background-color: np-color($background, disabled-button) !important;
    }

    .np-input {
      background-color: np-color($background, control);
      border: 1px solid np-color($foreground, divider);
      color: inherit;
      font-size: 14px;

      &:hover {
        border: 1px solid np-color($primary);
      }
    }

    .np-input:focus {
      border-color: np-color($primary) !important;
      box-shadow: 0 0px 3px 0px np-color($primary);
      transition: all 200ms linear;
    }

    .input-container {

      .np-len {
        color: np-color($foreground, disabled-text);
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-textarea-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-textarea-wrapper {
    color: np-color($foreground, text);

    .form-required {
      color: np-color($warn);
      vertical-align: middle;
    }

    .error-message {
      color: np-color($warn);
    }

    .disabled {
      background-color: np-color($background, disabled-button) !important;
    }

    .np-textarea {
      background-color: np-color($background, control);
      border: 1px solid np-color($foreground, divider);
      color: inherit;
      font-size: 14px;
    }

    .np-textarea:focus {
      border-color: np-color($primary) !important;
    }

    .np-textarea-container {
      .np-len {
        color: np-color($foreground, disabled-text);
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-tree-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-tree-wrapper {

    .np-kebab-wrapper {
      display: inline;
      float: right;
    }

    ul.fancytree-container {
      background-color: np-color($background, control);
      border: 1px dotted np-color($foreground, divider);
    }

    span.fancytree-node:hover {
      background-color: np-color($background, highlight) !important;
      border-color: np-color($background, highlight) !important;
    }

    .fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-focused {
      border-color: np-color($background, highlight);
    }

    .fancytree-plain span.fancytree-node.fancytree-active,
    .fancytree-plain span.fancytree-node.fancytree-selected {
      background-color: np-color($background, highlight, .6);
      border-color: np-color($background, highlight);
    }

    .fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active,
    .fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-selected,
    .fancytree-plain span.fancytree-node.fancytree-active:hover,
    .fancytree-plain span.fancytree-node.fancytree-selected:hover {
      background-color: np-color($background, highlight, .6);
      border-color: np-color($background, highlight);
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-paginator-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-paginator-wrapper {
    font-size: 14px;
    color: np-color($foreground, text);

    .pager-btn {
      border: 1px solid np-color($foreground, divider);
      border-right: none;
      background-color: np-color($background, control);
    }

    .number-pager {
      border: 1px solid np-color($foreground, divider);
      border-right: none;
      background-color: np-color($background, control);
    }

    .last-btn {
      border-right: 1px solid np-color($foreground, divider);
    }

    .selected-btn {
      background-color: np-color($background, highlight, .8);
      border-color: np-color($foreground, divider);
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);

// Implement the rem unit with SCSS so we don't have to actually set a font-size on
// the user's body element.
@function rem($multiplier) {
  $font-size: 10px;
  @return $multiplier * $font-size;
}


// Typography
$np-body-font-size-base: rem(1.4) !default;
$np-font-family: Roboto,
'Helvetica Neue',
sans-serif !default;

// Media queries
$np-xsmall: 'max-width: 600px';

// TODO: Revisit all z-indices before beta
// z-index master list

$z-index-fab: 20 !default;
$z-index-drawer: 100 !default;

// Overlay z indices.
$np-z-index-overlay: 1000;
$np-z-index-overlay-container: 1;
$np-z-index-overlay-backdrop: 1;


// Global constants
$pi: 3.14159265;

// Padding between input toggles and their labels
$np-toggle-padding: 8px !default;
// Width and height of input toggles
$np-toggle-size: 20px !default;

// Easing Curves
// TODO: all of these need to be revisited

// The default animation curves used by material design.
$np-linear-out-slow-in-timing-function: cubic-bezier(0, 0, 0.2, 0.1) !default;
$np-fast-out-slow-in-timing-function: cubic-bezier(0.4, 0, 0.2, 1) !default;
$np-fast-out-linear-in-timing-function: cubic-bezier(0.4, 0, 1, 1) !default;

$ease-in-out-curve-function: cubic-bezier(0.35, 0, 0.25, 1) !default;

$swift-ease-out-duration: 400ms !default;
$swift-ease-out-timing-function: cubic-bezier(0.25, 0.8, 0.25, 1) !default;
$swift-ease-out: all $swift-ease-out-duration $swift-ease-out-timing-function !default;

$swift-ease-in-duration: 300ms !default;
$swift-ease-in-timing-function: cubic-bezier(0.55, 0, 0.55, 0.2) !default;
$swift-ease-in: all $swift-ease-in-duration $swift-ease-in-timing-function !default;

$swift-ease-in-out-duration: 500ms !default;
$swift-ease-in-out-timing-function: $ease-in-out-curve-function !default;
$swift-ease-in-out: all $swift-ease-in-out-duration $swift-ease-in-out-timing-function !default;

$swift-linear-duration: 80ms !default;
$swift-linear-timing-function: linear !default;
$swift-linear: all $swift-linear-duration $swift-linear-timing-function !default;


// Basic Colors
$navy: #1ab394; // Primary color
$dark-gray: #c2c2c2; // Default color
// $gray: #5f5f5f;
$blue: #1c84c6; // Success color
$lazur: #2CC5C6; // Info color
$yellow: #f8ac59; // Warrning color
$red: #ED5565; // Danger color
$black: #333333;
// Various colors
$text-color: #666666; // Body text
$gray: #f3f3f4; // Background wrapper color
$light-gray: #D1DADE; // Default label, badget
$label-badget-color: #5E5E5E;
$light-blue: #f3f6fb;
// Spiner color and margin
$spin-color: $navy;
$spin-margin: 0 auto;
// IBOX colors ( default panel colors)
$border-color: #e7eaec; // IBox border
$ibox-title-bg: #ffffff; // IBox Background header
$ibox-content-bg: #ffffff; // IBox Background content
//Sidebar width
$sidebar-width: 220px;
// Boxed layout width
$boxed-width: 1200px;
// $boxed-backgound: url('patterns/shattered.png');
//Border radius for buttons
$btn-border-radius: 5px;
//Navigation
$nav-bg: #2F4050;
$nav-text-color: #a7b1c2;
// 按钮相关
$btn-disable-bg: #999;
$btn-disable-color: #fafafa;

.flex-wrap {
  display: flex;
}

.col-flex {
  flex-direction: column;
}

.row-flex {
  flex-direction: row;
}

.middle-flex {
  justify-content: center;
  align-items: center;
}

.np-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  width: 100%;
}

.np-column {
  display: flex;
  flex-direction: column;
  flex-basis: 100%;
  flex: 1;
}

.backdrop-transparent {
  opacity: 0;
}

@mixin np-controls-color($color, $suffix) {

  .np-controls-color#{if($suffix == '', '', '-' + $suffix)} {
    background-color: np-color($color);

    &:hover {
      background-color: darken(np-color($color), 5%);
    }
  }
}


@mixin np-tab-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .tab-title-container {
    color: np-color($foreground, text);
    background-color: np-color($background, control);
    border-bottom: 1px solid np-color($foreground, divider);

    .tab-title {
      color: np-color($foreground, text);

      &.active {
        color: np-color($primary);
        border-bottom: 3px solid np-color($primary);
        z-index: 1;
      }

      &.disabled {
        color: np-color($foreground, disabled-button) !important;
        cursor: not-allowed !important;
      }
    }

    &.chrome-like-tabs {
      background: np-color($background, highlight);
      border-bottom: none;

      .tab-title:first-child {
        margin-left: 15px;
      }

      .tab-title {
        background: np-color($background, highlight);

        &.active {
          background-color: white;
          border-bottom: none;

          &::before {
            border-color: transparent transparent np-color($background, highlight);
          }

          &::after {
            border-color: transparent transparent np-color($background, highlight);
          }
        }

        .tab-divider {
          border-left: 1px solid np-color($background, contrast);
        }
      }
    }
  }

  np-tab-group {
    display: block;
    color: np-color($foreground, text);
    background-color: np-color($background, control);
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-table-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-table-wrapper {
    font-size: 14px;
    color: np-color($foreground, text);
    // box-shadow: 0 1px 3px np-color($background, highlight);
    background-color: np-color($background, control);

    .table-header {
      background-color: np-color($background, highlight, .8);
      color: np-color($foreground, text);
      font-size: 13px;
      border-bottom: 1px solid np-color($background, highlight);

      .table-header-text {

        &>.fas.fa-arrow-up,
        &>.fas.fa-arrow-down {
          color: np-color($foreground, text);
        }
      }
    }

    .table-body {

      .table-body-row {
        color: np-color($foreground, text, .95);
        border-bottom: 1px solid np-color($background, shadow);

        &:nth-of-type(odd) {
          background-color: np-color($background, shadow, .8);
        }

        &:nth-of-type(even) {
          background-color: np-color($background, control);
        }

        &:hover {
          background-color: np-color($background, highlight, .6);
        }
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-radio-group-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-radio-group-wrapper {
    .radio.radio-checked+span::after {
      background: np-color($primary);
    }

    .form-required {
      color: np-color($warn);
      vertical-align: middle;
    }

    .error-message {
      color: np-color($warn);
    }

    .disabled {
      background-color: np-color($background, disabled-button) !important;
    }
  }

  .np-radio-button-wrapper {

    span.input-helper {
      border: .071429em solid np-color($primary);
    }

    span.input-helper.radio-forbidden {
      border-color: np-color($background, disabled-button) !important;
    }

    .rectangle-radio {
      border: 1px solid np-color($foreground, divider);

      &.radio-checked {
        border: 1px solid np-color($primary);
        background-color: np-color($background, background);
      }

      &.radio-checked.radio-forbidden {
        border: 1px solid np-color($foreground, disabled) !important;
      }
    }

    .radio {
      &.radio-checked {
        border: 1px solid np-color($primary);
        background-color: np-color($background, background);
      }

      &.radio-forbidden+span::after {
        background-color: np-color($background, disabled-button) !important;
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-stepper-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-stepper-wrapper {
    color: np-color($foreground, text);
    background-color: np-color($background, control);

    .progress-container {
      .progress-circle {
        background-color: np-color($primary);
      }

      .progress-line {
        background-color: np-color($primary);
      }

      .progress-circle-unselected {
        background-color: np-color($foreground, disabled);
      }

      .progress-line-unselected {
        background-color: np-color($foreground, disabled);
      }
    }

    .step-title {
      color: np-color($primary);
    }

    .step-title-unselected {
      color: np-color($foreground, disabled);
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-step-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-step-wrapper {
    
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-title-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-title-underline {
    border-bottom: 1px solid np-color($foreground, divider);
  }

  .np-title-wrapper {

    .title-text {
      color: np-color($foreground, text);
    }

    .vBar {
      &:before {
        background-color: np-color($primary);
      }
    }

    .title-description {
      color: np-color($foreground, secondary-text);
    }

    .caption-text {
      color: np-color($foreground, text);

      &:before {
        background-color: np-color($primary);
      }
    }

    .notice-icon {
      color: np-color($primary);
    }

    .notice-text {
      color: np-color($primary);
    }

    .notice-description {
      color: np-color($foreground, text);

      &:hover {
        color: np-color($primary);
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-switch-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-switch-wrapper {
    color: np-color($foreground, text);

    .form-required {
      color: np-color($warn);
      vertical-align: middle;
    }

    .error-message {
      color: np-color($warn);
    }

    .disabled {
      // background-color: np-color($background, disabled-button) !important;
    }

    .np-switch {
      // background-color: #fff;
      background-color: np-color($background, control);
      // border: 1px solid #e5e6e7;
      border: 1px solid np-color($foreground, divider);
      color: inherit;
      font-size: 14px;
    }

    .np-switch:focus {
      border-color: np-color($primary) !important;
    }

    .switch-container {

      .switch {
        border: 1px solid np-color($foreground, divider);
        background-color: np-color($background, background);
        box-shadow: np-color($background, shadow) 0 0 0 0 inset;
      }

      .switch:before {
        background-color: np-color($background, background);
        box-shadow: 0 1px 3px np-color($background, contrast);
      }

      .switch.checked {
        border-color: np-color($primary);
        box-shadow: np-color($primary) 0 0 0 16px inset;
        background-color: np-color($primary);
      }

      .switch.checked:before {
        background: np-color($background, control) !important;
      }

      .switch.switch-animbg:checked {
        box-shadow: np-color($background, shadow) 0 0 0 0 inset;
        background-color: np-color($primary);
      }

      .switch.switch-anim.checked {
        box-shadow: np-color($primary) 0 0 0 16px inset;
        background-color: np-color($primary);
      }

      .switch.disabled.checked {
        border-color: np-color($background, disabled-button);
        box-shadow: np-color($background, disabled-button) 0 0 0 16px inset;
        background-color: np-color($background, disabled-button);
      }

      .switch.disabled.checked:before {
        background: np-color($background, control) !important;
      }

      .switch.switch-anim.disabled.checked {
        box-shadow: np-color($background, disabled-button) 0 0 0 16px inset;
        background-color: np-color($background, disabled-button);
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin progress-bar-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .progress-bar-wrapper {
    
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin circle-bar-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .circle-bar-wrapper {
    color: np-color($foreground, text);
    border-radius: 50%;
  }

  .percent-circle-bar-wrapper {
    color: np-color($foreground, text);
    border-radius: 50%;
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-loading-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-loading-wrapper {
    border-radius: 50%;
    &>div {
      background-color: np-color($background, control);
      color: np-color($foreground, text);
    }
  }

  .np-solid-loading-wrapper {
    background-color: np-color($background, control);
    color: np-color($foreground, text);
    border-radius: 50%;
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-tooltip-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-tooltip-wrapper {
    div {
      color: white;
    }

    &.arrow-top {
      &::before {
        border-bottom: 6px solid rgba(73, 89, 106, 0.7);
      }
    }

    &.arrow-right {
      &::before {
        border-left: 6px solid rgba(73, 89, 106, 0.7);
      }
    }

    &.arrow-bottom {
      &::before {
        border-top: 6px solid rgba(73, 89, 106, .7);
      }
    }

    &.arrow-left {
      &::before {
        border-right: 6px solid rgba(73, 89, 106, 0.7);
      }
    }

    &.arrow-bottomRight {
      &::before {
        border-right: 10px solid rgba(73, 89, 106, 0.7);
      }
    }

    &.arrow-bottomLeft {
      &::before {
        border-left: 10px solid rgba(73, 89, 106, 0.7);
      }
    }

    &.arrow-topRight {
      &::before {
        border-right: 10px solid rgba(73, 89, 106, 0.7);
      }
    }

    &.arrow-topLeft {
      &::before {
        border-left: 10px solid rgba(73, 89, 106, 0.7);
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-panel-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-panel-wrapper {
    background-color: np-color($background, control);
    color: np-color($foreground, text);
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-badge-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-badge-wrapper {
    position: relative;
    display: block;

    .np-badge-content {
      position: absolute;
      text-align: center;
      display: inline-block;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      pointer-events: none;
      color: white;
      width: 25px;
      height: 25px;
      line-height: 25px;
    }

    &.np-badge-above {
      .np-badge-content {
        top: -16px;
      }
    }

    &.np-badge-below {
      .np-badge-content {
        bottom: -16px;
      }
    }

    &.np-badge-before {
      .np-badge-content {
        left: -16px;
      }
    }

    &.np-badge-after {
      .np-badge-content {
        right: -16px;
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-box-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-box-wrapper {
    background-color: np-color($background, control);

    .np-box-header {
      color: white;
    }

    .np-box-content {
      margin: auto 0;
      justify-content: space-evenly;
      align-items: center;

      &>div.center,
      &>div.left-right {

        &>span:first-child {
          color: np-color($foreground, secondary-text);
        }

        &>span:last-child {
          color: np-color($foreground, text);
        }
      }

      .vertical-line {
        border-left: 1px solid np-color($foreground, divider);
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-kebab-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .kebab-dropdown-container {
    box-shadow: 0px 5px 19px 2px np-color($background, shadow, .1);
    border: 1px solid np-color($foreground, divider);
    background: np-color($background, background);

    &>span {
      color: np-color($foreground, text);

      &:hover:not(.h-line) {
        background-color: np-color($background, hover);
      }
    }

    .h-line {
      border: none;
      border-bottom: 1px solid np-color($foreground, divider);
    }
  }

  .np-kebab-wrapper {
    .fas.fa-ellipsis-v {
      color: np-color($foreground, text);
    }

    .interact-expand {
      color: np-color($primary);
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-img-upload-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .img-upload-wrapper {
    color: np-color($foreground, text);

    .form-required {
      color: np-color($warn);
      vertical-align: middle;
    }

    .error-message {
      color: np-color($warn);
    }

    .img-thumbnail-container {
      background-color: np-color($background, control);

      &>.img-placeholder {
        color: np-color($foreground, text);
      }
    }

    .img-desc {
      color: np-color($foreground, secondary-text);
      ;
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-cropper-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-cropper-wrapper {}
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-draggable-pics-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-draggable-pics-wrapper {

    &.item-container {
      border: solid 1px np-color($foreground, divider);

      .item-box {
        border: solid 1px np-color($foreground, divider);
        color: np-color($foreground, text);
        box-shadow: 0 3px 1px -2px rgba(0, 0, 0, 0.2),
          0 2px 2px 0 rgba(0, 0, 0, 0.14),
          0 1px 5px 0 rgba(0, 0, 0, 0.12);

        &>.fas.fa-times-circle {
          color: np-color($warn);
          background: white;
        }
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-date-picker-popup-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-date-picker-popup-wrapper {
    background-color: np-color($background, control);
    color: np-color($foreground, text);
    box-shadow: 0 3px 6px -4px rgba(0, 0, 0, .12), 0 6px 16px 0 rgba(0, 0, 0, .08), 0 9px 28px 8px rgba(0, 0, 0, .05);

    .date-picker-header {
      .arrow-container {
        color: np-color($foreground, hint-text);

        &>*:hover {
          color: np-color($foreground, text);
        }
      }

      .date-container {
        &>*:hover {
          color: np-color($primary);
        }
      }
    }

    .date-picker-body {
      border-top: 1px solid np-color($foreground, divider);
      border-bottom: 1px solid np-color($foreground, divider);

      .days-panel {
        &>.day {
          &:hover {
            background-color: np-color($background, highlight);
          }
        }

        &>.now-day {
          border: 1px solid np-color($primary) !important;
        }

        &>.selected-day {
          background-color: np-color($primary) !important;
        }

        &>.non-available-day {
          color: np-color($foreground, disabled-text);
        }

        &>.normal {}

        &>.within-hover {
          border: 1px dashed np-color($primary);
        }

        &>.within-selected {
          background-color: np-color($primary, lighter);
        }

        &>.within-selected-hover {
          background-color: np-color($primary, darker);
        }
      }

      .months-panel {
        justify-content: center;
        align-items: center;
        padding: 10px 0;

        &>.month {
          &:hover {
            background-color: np-color($background, highlight);
          }
        }

        &>.selected-month {
          background-color: np-color($primary) !important;
        }
      }

      .years-panel {
        justify-content: center;
        align-items: center;
        padding: 10px 0;

        &>.year {
          &:hover {
            background-color: np-color($background, highlight);
          }
        }

        &>.selected-year {
          background-color: np-color($primary) !important;
        }

        &>.non-available-year {
          color: np-color($foreground, disabled-text);
        }
      }
    }

    .np-date-picker-footer {

      .today,
      .footer-items-and-today {
        color: np-color($primary);
      }
    }

    .np-time-picker-panel {

      .time-picker-body {
        border-top: 1px solid np-color($foreground, divider);
        border-bottom: 1px solid np-color($foreground, divider);
        box-sizing: border-box;
      }

      .selected-item {
        background-color: np-color($primary, lighter);
      }

      .hours,
      .minutes,
      .seconds {

        &>span:hover {
          background-color: np-color($background, highlight);
        }
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-date-range-picker-popup-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-date-range-picker-popup-wrapper {
    background-color: np-color($background, control);
    color: np-color($foreground, text);
    box-shadow: 0 3px 6px -4px rgba(0, 0, 0, .12), 0 6px 16px 0 rgba(0, 0, 0, .08), 0 9px 28px 8px rgba(0, 0, 0, .05);

    .start-picker {
      .np-date-picker-popup-wrapper {
        box-shadow: none;
      }
    }

    .end-picker {
      .np-date-picker-popup-wrapper {
        box-shadow: none;
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-date-picker-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-date-picker-wrapper {
    color: np-color($foreground, text);

    &>.far.fa-calendar {
      color: np-color($foreground, secondary-text);
    }

    &>.fas.fa-times-circle {
      color: np-color($background, contrast);

      &:hover {
        color: np-color($background, contrast, .8);

        +np-input .np-input {
          border: 1px solid np-color($primary);
        }
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-date-range-picker-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-date-range-picker-wrapper {
    color: np-color($foreground, text);

    .form-required {
      color: np-color($warn);
      vertical-align: middle;
    }

    &>.far.fa-calendar {
      color: np-color($foreground, secondary-text);
    }

    &>.fas.fa-times-circle {
      color: np-color($background, contrast);

      &:hover {
        color: np-color($background, contrast, .8);

        +np-input .np-input {
          border: 1px solid np-color($primary);
        }
      }
    }

    .date-range-wrapper {
      border: 1px solid np-color($foreground, divider);
      position: relative;

      .range-picker-divider {
        background-color: np-color($background, control);
        line-height: 32px;
      }

      .disabled {
        background-color: np-color($background, disabled-button) !important;
      }

      &:hover {
        border: 1px solid np-color($primary);
      }

      &:focus {
        border: 1px solid np-color($primary) !important;
        box-shadow: 0 0px 3px 0px np-color($primary);
        transition: all 200ms linear;
        outline: none;
      }

      .np-input {
        border: none !important;

        &:hover {
          border: none !important;
        }

        &:focus {
          border: none !important;
          box-shadow: none !important;
          transition: none !important;
        }
      }
    }

    .error-message {
      color: np-color($warn);
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-month-picker-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-month-picker-wrapper {
    color: np-color($foreground, text);

    &>.far.fa-calendar {
      color: np-color($foreground, secondary-text);
    }

    &>.fas.fa-times-circle {
      color: np-color($background, contrast);

      &:hover {
        color: np-color($background, contrast, .8);

        +np-input .np-input {
          border: 1px solid np-color($primary);
        }
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-year-picker-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-year-picker-wrapper {
    color: np-color($foreground, text);

    &>.far.fa-calendar {
      color: np-color($foreground, secondary-text);
    }

    &>.fas.fa-times-circle {
      color: np-color($background, contrast);

      &:hover {
        color: np-color($background, contrast, .8);

        +np-input .np-input {
          border: 1px solid np-color($primary);
        }
      }
    }
  }
}

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));

// Color palettes from the Material Design spec.
// See https://www.google.com/design/spec/style/color.html
//
// Contrast colors are hard-coded because it is too difficult (probably impossible) to
// calculate them. These contrast colors are pulled from the public Material Design spec swatches.
// While the contrast colors in the spec are not prescriptive, we use them for convenience.


$black-87-opacity: rgba(black, 0.87);
$white-87-opacity: rgba(white, 0.87);

$np-red: (50: #ffebee,
  100: #ffcdd2,
  200: #ef9a9a,
  300: #e57373,
  400: #ef5350,
  500: #f44336,
  600: #e53935,
  700: #d32f2f,
  800: #c62828,
  900: #b71c1c,
  A100: #ff8a80,
  A200: #ff5252,
  A400: #ff1744,
  A700: #d50000,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-pink: (50: #fce4ec,
  100: #f8bbd0,
  200: #f48fb1,
  300: #f06292,
  400: #ec407a,
  500: #e91e63,
  600: #d81b60,
  700: #c2185b,
  800: #ad1457,
  900: #880e4f,
  A100: #ff80ab,
  A200: #ff4081,
  A400: #F9B6CD,
  A700: #c51162,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-purple: (50: #f3e5f5,
  100: #e1bee7,
  200: #ce93d8,
  300: #ba68c8,
  400: #ab47bc,
  500: #9c27b0,
  600: #8e24aa,
  700: #7b1fa2,
  800: #6a1b9a,
  900: #4a148c,
  A100: #ea80fc,
  A200: #e040fb,
  A400: #d500f9,
  A700: #aa00ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-deep-purple: (50: #ede7f6,
  100: #d1c4e9,
  200: #b39ddb,
  300: #9575cd,
  400: #7e57c2,
  500: #673ab7,
  600: #5e35b1,
  700: #512da8,
  800: #4527a0,
  900: #311b92,
  A100: #b388ff,
  A200: #7c4dff,
  A400: #651fff,
  A700: #6200ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: $white-87-opacity,
    A700: $white-87-opacity,
  ));

$np-indigo: (50: #e8eaf6,
  100: #c5cae9,
  200: #9fa8da,
  300: #7986cb,
  400: #5c6bc0,
  500: #3f51b5,
  600: #3949ab,
  700: #303f9f,
  800: #283593,
  900: #1a237e,
  A100: #8c9eff,
  A200: #536dfe,
  A400: #3d5afe,
  A700: #304ffe,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-blue: (50: #e3f2fd,
  100: #bbdefb,
  200: #90caf9,
  300: #64b5f6,
  400: #42a5f5,
  500: #2196f3,
  600: #1e88e5,
  700: #1976d2,
  800: #1565c0,
  900: #0d47a1,
  A100: #82b1ff,
  A200: #42a5f5,
  A400: #2979ff,
  A700: #2962ff,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: white,
    A400: white,
    A700: white,
  ));

$np-light-blue: (50: #e1f5fe,
  100: #b3e5fc,
  200: #81d4fa,
  300: #4fc3f7,
  400: #29b6f6,
  500: #03a9f4,
  600: #039be5,
  700: #0288d1,
  800: #0277bd,
  900: #01579b,
  A100: #80d8ff,
  A200: #40c4ff,
  A400: #00b0ff,
  A700: #0091ea,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: white,
  ));

$np-cyan: (50: #e0f7fa,
  100: #b2ebf2,
  200: #80deea,
  300: #4dd0e1,
  400: #26c6da,
  500: #00bcd4,
  600: #00acc1,
  700: #0097a7,
  800: #00838f,
  900: #006064,
  A100: #84ffff,
  A200: #18ffff,
  A400: #00e5ff,
  A700: #00b8d4,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-teal: (50: #e0f5f6,
  100: #b0e5e7,
  200: #78d6d7,
  300: #2cc5c5,
  400: #00b7b6,
  500: #00a9a5,
  600: #009b96,
  700: #008b84,
  800: #007a74,
  900: #005d54,
  A100: #a7ffeb,
  A200: #64ffda,
  A400: #2CC5C5,
  A700: #21B9BB,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $black-87-opacity,
  ));

$np-green: (50: #e8f5e9,
  100: #c8e6c9,
  200: #a5d6a7,
  300: #81c784,
  400: #66bb6a,
  500: #4caf50,
  600: #43a047,
  700: #388e3c,
  800: #2e7d32,
  900: #1b5e20,
  A100: #b9f6ca,
  A200: #69f0ae,
  A400: #3F7158,
  A700: #00c853,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-light-green: (50: #f1f8e9,
  100: #dcedc8,
  200: #c5e1a5,
  300: #aed581,
  400: #9ccc65,
  500: #8bc34a,
  600: #7cb342,
  700: #689f38,
  800: #558b2f,
  900: #33691e,
  A100: #ccff90,
  A200: #b2ff59,
  A400: #76ff03,
  A700: #64dd17,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-lime: (50: #f9fbe7,
  100: #f0f4c3,
  200: #e6ee9c,
  300: #dce775,
  400: #d4e157,
  500: #cddc39,
  600: #c0ca33,
  700: #afb42b,
  800: #9e9d24,
  900: #827717,
  A100: #f4ff81,
  A200: #eeff41,
  A400: #c6ff00,
  A700: #aeea00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-yellow: (50: #fffde7,
  100: #fff9c4,
  200: #fff59d,
  300: #fff176,
  400: #ffee58,
  500: #ffeb3b,
  600: #fdd835,
  700: #fbc02d,
  800: #f9a825,
  900: #f57f17,
  A100: #ffff8d,
  A200: #ffff00,
  A400: #F9EBB6,
  A700: #ffd600,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-amber: (50: #fff8e1,
  100: #ffecb3,
  200: #ffe082,
  300: #ffd54f,
  400: #ffca28,
  500: #ffc107,
  600: #ffb300,
  700: #ffa000,
  800: #ff8f00,
  900: #ff6f00,
  A100: #ffe57f,
  A200: #ffd740,
  A400: #ffc400,
  A700: #ffab00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $black-87-opacity,
    700: $black-87-opacity,
    800: $black-87-opacity,
    900: $black-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $black-87-opacity,
  ));

$np-orange: (50: #fff3e0,
  100: #ffe0b2,
  200: #ffcc80,
  300: #ffb74d,
  400: #ffa726,
  500: #ff9800,
  600: #fb8c00,
  700: #f57c00,
  800: #ef6c00,
  900: #e65100,
  A100: #ffd180,
  A200: #ffab40,
  A400: #ff9100,
  A700: #ff6d00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: black,
  ));

$np-deep-orange: (50: #fbe9e7,
  100: #ffccbc,
  200: #ffab91,
  300: #ff8a65,
  400: #ff7043,
  500: #ff5722,
  600: #f4511e,
  700: #e64a19,
  800: #d84315,
  900: #bf360c,
  A100: #ff9e80,
  A200: #ff6e40,
  A400: #ff3d00,
  A700: #dd2c00,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: white,
    600: white,
    700: white,
    800: white,
    900: white,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: white,
  ));

$np-brown: (50: #efebe9,
  100: #d7ccc8,
  200: #bcaaa4,
  300: #a1887f,
  400: #8d6e63,
  500: #795548,
  600: #6d4c41,
  700: #5d4037,
  800: #4e342e,
  900: #3e2723,
  A100: #d7ccc8,
  A200: #bcaaa4,
  A400: #8d6e63,
  A700: #5d4037,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: white,
    400: white,
    500: $white-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

$np-grey: (0: #ffffff,
  50: #fafafa,
  100: #f5f5f5,
  200: #eeeeee,
  300: #e0e0e0,
  350: #cccccc,
  400: #bdbdbd,
  500: #9e9e9e,
  600: #757575,
  700: #616161,
  800: #424242,
  900: #292C29,
  1000: #000000,
  A100: #ffffff,
  A200: #eeeeee,
  A400: #bdbdbd,
  A700: #616161,
  contrast: (0: $black-87-opacity,
    50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: $black-87-opacity,
    500: $black-87-opacity,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    1000: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: $black-87-opacity,
    A700: $white-87-opacity,
  ));

$np-blue-grey: (50: #eceff1,
  100: #cfd8dc,
  200: #b0bec5,
  300: #90a4ae,
  400: #78909c,
  500: #607d8b,
  600: #546e7a,
  700: #455a64,
  800: #37474f,
  900: #263238,
  A100: #cfd8dc,
  A200: #b0bec5,
  A400: #585F60,
  A700: #455a64,
  contrast: (50: $black-87-opacity,
    100: $black-87-opacity,
    200: $black-87-opacity,
    300: $black-87-opacity,
    400: white,
    500: white,
    600: $white-87-opacity,
    700: $white-87-opacity,
    800: $white-87-opacity,
    900: $white-87-opacity,
    A100: $black-87-opacity,
    A200: $black-87-opacity,
    A400: white,
    A700: $white-87-opacity,
  ));

// Background palette for login theme.
$np-login-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: map_get($np-grey, 50),
  hover: rgba(black, 0.04),
  card: map_get($np-grey, 200),
  contrast: map_get($np-grey, 700),
  control: map_get($np-grey, 200),
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: white,
  disabled-button: rgba(black, 0.12),
  text: rgba(black, 0.87));

$np-login-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: rgba(39, 39, 39, 0.95),
  hover: rgba(white, 0.04),
  card: map_get($np-grey, 800),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12),
  text: rgba(black, 0.87));

// Background palette for light themes.
$np-light-theme-background: (status-bar: map_get($np-grey, 300),
  app-bar: map_get($np-grey, 100),
  background: #f3f3f3,
  hover: rgba(black, 0.04), // TODO(kara): check style with Material Design UX
  card: white,
  contrast: map_get($np-grey, 700),
  control: white,
  highlight: map_get($np-grey, 300),
  shadow: map_get($np-grey, 100),
  dialog: map_get($np-grey, 200),
  disabled-button: rgba(black, 0.12));

// Background palette for dark themes.
$np-dark-theme-background: (status-bar: black,
  app-bar: map_get($np-grey, 900),
  background: #323232,
  hover: rgba(white, 0.04), // TODO(kara): check style with Material Design UX
  card: map_get($np-grey, 900),
  contrast: map_get($np-grey, 300),
  control: map_get($np-grey, 800),
  highlight: map_get($np-grey, 700),
  shadow: map_get($np-grey, 900),
  dialog: map_get($np-grey, 800),
  disabled-button: rgba(white, 0.12));

// Foreground palette for light themes.
$np-light-theme-foreground: (base: black,
  divider: rgba(black, 0.12),
  dividers: rgba(black, 0.12),
  disabled: rgba(black, 0.38),
  disabled-button: rgba(black, 0.38),
  disabled-text: rgba(black, 0.38),
  hint-text: rgba(black, 0.38),
  secondary-text: rgba(black, 0.54),
  contrast: map_get(map-get($np-grey, contrast), 700),
  control: map_get(map-get($np-grey, contrast), 200),
  highlight: map_get(map-get($np-grey, contrast), 300),
  shadow: map_get(map-get($np-grey, contrast), 100),
  icon: rgba(black, 0.54),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 200),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.54),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(black, 0.54),
  text: rgba(black, 0.87),
  placeholder: rgba(black, 0.38));

// Foreground palette for dark themes.
$np-dark-theme-foreground: (base: white,
  divider: rgba(white, 0.3),
  dividers: rgba(white, 0.3),
  disabled: rgba(white, 0.5),
  disabled-button: rgba(white, 0.5),
  disabled-text: rgba(white, 0.5),
  hint-text: rgba(white, 0.5),
  secondary-text: rgba(white, 0.7),
  contrast: map_get(map-get($np-grey, contrast), 300),
  control: map_get(map-get($np-grey, contrast), 800),
  highlight: map_get(map-get($np-grey, contrast), 700),
  shadow: map_get(map-get($np-grey, contrast), 900),
  icon: rgba(white, 0.87),
  control-icon: rgba(black, 0.69),
  control-disabled: map_get($np-grey, 350),
  control-text: rgba(black, 0.87),
  control-disabled-text: rgba(black, 0.87),
  dialog-iframe-title: rgba(black, 0.87),
  icons: rgba(white, 0.87),
  text: rgba(white, 0.87),
  placeholder: rgba(black, 0.38));



// For a given hue in a palette, return the contrast color from the map of contrast palettes.
// @param $color-map
// @param $hue
@function np-contrast($palette, $hue: default) {
  @return map-get(map-get($palette, contrast), $hue);
}


// Creates a map of hues to colors for a theme. This is used to define a theme palette in terms
// of the Material Design hues.
// @param $color-map
// @param $primary
// @param $lighter
@function np-palette($base-palette, $default: 500, $lighter: 100, $darker: 700) {
  $result: map_merge($base-palette, (
    default: map-get($base-palette, $default),
    lighter: map-get($base-palette, $lighter),
    darker: map-get($base-palette, $darker),

    default-contrast: np-contrast($base-palette, $default),
    lighter-contrast: np-contrast($base-palette, $lighter),
    darker-contrast: np-contrast($base-palette, $darker)
  ));

  // For each hue in the palette, add a "-contrast" color to the map.
  @each $hue, $color in $base-palette {
    $result: map_merge($result, (
      '#{$hue}-contrast': np-contrast($base-palette, $hue)
    ));
  }

  @return $result;
}


// Gets a color from a theme palette (the output of np-palette).
// The hue can be one of the standard values (500, A400, etc.), one of the three preconfigured
// hues (default, lighter, darker), or any of the aforementioned prefixed with "-contrast".
//
// @param $color-map The theme palette (output of np-palette).
// @param $hue The hue from the palette to use. If this is a value between 0 and 1, it will
//     be treated as opacity.
// @param $opacity The alpha channel value for the color.
@function np-color($palette, $hue: default, $opacity: 1) {
  // If hueKey is a number between zero and one, then it actually contains an
  // opacity value, so recall this function with the default hue and that given opacity.
  @if type-of($hue) == number and $hue >= 0 and $hue <= 1 {
    @return np-color($palette, default, $hue);
  }

  $color: map-get($palette, $hue);
  $opacity: if(opacity($color) < 1, opacity($color), $opacity);

  @return rgba($color, $opacity);
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-login-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-login-light-theme-background,
    fonts: $fonts
  );
}

@function np-login-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-login-dark-theme-background,
    fonts: $fonts
  );
}

// Creates a container object for a light theme to be given to individual component theme mixins.
@function np-light-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: false,
    foreground: $np-light-theme-foreground,
    background: $np-light-theme-background,
    fonts: $fonts
  );
}


// Creates a container object for a dark theme to be given to individual component theme mixins.
@function np-dark-theme($primary, $accent, $warn, $fonts) {
  @return (
    primary: $primary,
    accent: $accent,
    warn: $warn,
    is-dark: true,
    foreground: $np-dark-theme-foreground,
    background: $np-dark-theme-background,
    fonts: $fonts
  );
}

$np-large: (
    is-large: true,
    heading-0: 24px,
    heading-1: 18px,
    heading-2: 16px,
    heading-3: 13px,
    heading-4: 11px,
    icon-extra-large: 28px,
    icon-large: 22px,
    icon-normal: 16px,
    icon-small: 13px,
    text-super-large: 24px,
    text-large: 14px,
    text-normal: 12px,
    text-small: 11px,
    text-super-small: 10px,
    text-ultra-small: 8px
);

$np-small: (
    is-large: false,
    heading-0: 20px,
    heading-1: 16px,
    heading-2: 14px,
    heading-3: 11px,
    heading-4: 9px,
    icon-extra-large: 24px,
    icon-large: 18px,
    icon-normal: 14px,
    icon-small: 11px,
    text-super-large: 20px,
    text-large: 12px,
    text-normal: 10px,
    text-small: 9px,
    text-super-small: 8px,
    text-ultra-small: 6px
);


@mixin np-dropdown-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-dropdown-wrapper {
    color: np-color($foreground, text);

    .selected-item-wrapper {
      background: np-color($background, control);
      border: 1px solid np-color($foreground, divider);

      & .placeholder {
        color: np-color($foreground, placeholder);
      }

      &:hover {
        background-color: np-color($background, hover);
        border: 1px solid np-color($primary);
      }

      &:focus {
        border: 1px solid np-color($primary);
      }

      .mul-item-container {

        .mul-item {
          background-color: np-color($primary, 200);
        }
      }
    }

    .disabled {
      background-color: np-color($background, disabled-button) !important;
      cursor: not-allowed !important;
    }
  }

  .np-dropdown-viewport {
    border: 1px solid np-color($primary);
    background: np-color($background, control);
    box-shadow: 0 1px 5px np-color($background, shadow);
    border-top: none;

    .search-container {

      .fas.fa-search {
        color: np-color($foreground, disabled-text);
      }
    }

    .select-item {
      &:hover {
        background-color: np-color($background, hover);
      }

      &.active {
        background-color: np-color($primary, lighter);
      }
    }

    &>cdk-virtual-scroll-viewport {
      &::-webkit-scrollbar {
        width: 8px;
      }

      &::-webkit-scrollbar-thumb {
        background: #ccc;
        border-radius: 5px;
      }

      &::-webkit-scrollbar-track {
        background: np-color($background, hover);
      }
    }
  }
}

@mixin np-sidenav-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);
  $background: map-get($theme, background);
  $foreground: map-get($theme, foreground);
  $is-dark: map-get($theme, is-dark);

  $layout-background-color: np-color($background, background);
  $layout-foreground-color: np-color($foreground, text, 0.95);

  .np-sidenav-wrapper {
    color: np-color($foreground, text, 0.95);

    .sidenav-item-wrapper {

      & .sidenav-item {
        &:hover {
          color: np-color($primary);
          background-color: np-color($background, highlight);
        }
      }
    }
  }
}


@mixin np-controls-theme($theme) {
  @include np-core-theme($theme);
  @include np-button-theme($theme);
  @include np-checkbox-theme($theme);
  @include np-input-theme($theme);
  @include np-textarea-theme($theme);
  @include np-tree-theme($theme);
  @include np-paginator-theme($theme);
  @include np-tab-theme($theme);
  @include np-table-theme($theme);
  @include np-radio-group-theme($theme);
  @include np-stepper-theme($theme);
  @include np-step-theme($theme);
  @include np-title-theme($theme);
  @include np-switch-theme($theme);
  @include progress-bar-theme($theme);
  @include circle-bar-theme($theme);
  @include np-loading-theme($theme);
  @include np-tooltip-theme($theme);
  @include np-panel-theme($theme);
  @include np-badge-theme($theme);
  @include np-box-theme($theme);
  @include np-kebab-theme($theme);
  @include np-img-upload-theme($theme);
  @include np-cropper-theme($theme);
  @include np-draggable-pics-theme($theme);
  @include np-date-picker-popup-theme($theme);
  @include np-date-range-picker-popup-theme($theme);
  @include np-date-picker-theme($theme);
  @include np-date-range-picker-theme($theme);
  @include np-month-picker-theme($theme);
  @include np-year-picker-theme($theme);
  @include np-dropdown-theme($theme);
  @include np-sidenav-theme($theme);
}