Massive API changes:
Rgba renamed to RgbRgba' renamed to Rgb_floatHsla renamed to HslColorRep)brighness and relative_luminance merged in lightness function[de]saturate renamed to [des]intensifyrandom function (random hue, optional alpha lightness and chroma)Add utilities to modify a color
rotate_hue (Rotates the hue of a color by given angle)complementary (Rotates hue by 180 degree)lighten (Lightens a color by given amount)darken (Darks a color by given amount)saturate (Increases saturation by given amount)desaturate (Decreases saturation by given amount)light (tells if a color is perceived as light)contrast_ratio (returns contrast ratio between colors)relative_luminance (returns luminance of a color)brightness (returns perceived brightness of a color)readable (checks if a text color is readable on a backgroun)text_color (returns a suitable text color for given background color)Initial release.