/// @group o-overlay
/// @link http://registry.origami.ft.com/components/o-overlay

/// Silent mode: on (true) or off (false)
/// Set to false to output default overlay classes.
///
/// @type Boolean
/// @access public
$o-overlay-is-silent: true !default;

/// The overlay border width.
///
/// @type Number
/// @access private
$_o-overlay-border-width: 1px;