import { ColorSchemeName } from "react-native";
import { BaseColors, BaseTheme } from "./props";
/**
 * @function defaultColors
 * @template TColors
 * @description Determines the default color palette based on the user's preferred color scheme or the system's appearance.
 *              It returns either the `dark` or `light` color scheme.
 * @param {ColorSchemeName} [userScheme] - Optional. The user's preferred color scheme ('light' or 'dark'). If not provided, the system's appearance is used.
 * @returns {BaseColors & TColors} The default color palette for the specified or detected color scheme, extended with any custom colors.
 * @example
 * // Returns the dark color scheme if the system is in dark mode.
 * const darkColors = defaultColors();
 *
 * // Returns the light color scheme.
 * const lightColors = defaultColors('light');
 */
export declare function defaultColors<TColors>(userScheme?: ColorSchemeName): BaseColors & TColors;
/**
 * @function defaultTheme
 * @description Creates the default theme object, including colors, font sizes, spacing, and borders, based on the system's appearance.
 * @returns {BaseTheme<BaseColors>} The default theme configuration.
 */
export declare function defaultTheme(): BaseTheme<BaseColors>;
/**
 * @function createTheme
 * @template TColors
 * @description Generates a custom theme by merging provided properties with the default theme.
 * @param {Partial<BaseTheme<TColors>>} props - The properties to override in the default theme.
 * @returns {BaseTheme<TColors>} The complete custom theme.
 */
export declare function createTheme<TColors>(props: Partial<BaseTheme<TColors>>): BaseTheme<TColors>;