This material category includes paints for walls, woodwork and trim, automotive, as well as any other application where textures are not required.
For example, you might use solid colors to vary the color on an apparel item where texture changes are not required, or to set the color for the plastic trim and carpeting of an automotive interior. A material is considered a solid color if no src= value is present in the MSS.
Solid colors can be applied to all renderable objects.
Gray or RGB color value; required.