- Verrtex paint mode has been refactored into C++ templates. It now works with both byte and float colors and point & corner attribute domains. - There is a new API for mixing colors (also based on C++ templates). Unlike the existing APIs byte and float colors are interpolated identically. Interpolation does happen in a squared rgb space, this may be changed in the future. - Vertex paint now uses the sculpt undo system. Reviewed By: Brecht Van Lommel. Differential Revision: https://developer.blender.org/D14179 Ref D14179