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* utils/colors: move colors into subdir, add hsvAlexander Sulfrian2014-04-081-53/+0
| | | | | | | All color classes are now in an own subdirectory with a short name. The new class HsvColor represents the Hue/Saturation/Value color model and comes with conversion functions to and from rgb colors (currently integer arithmetic without optimization for higher presicion).
* utils/rgba_color: add RgbaColor (RGB with additional alpha channel)Alexander Sulfrian2013-01-131-0/+53