Monochrome art can be somewhat non-exciting. How do we get colors? From colormaps and visuals. A visual is a description of the color capabilities of a particular graphics mode. A colormap is a table of available colors for a particular visual. Color in GDK is represented by a GdkColor class which contains an RGB value and a pixel. The red, green, and blue values are in the range 0 to 65535 (16-bit). Contents of the pixel field depend on the visual. ]]>