Defines color of graphical placements or 3d placements Color can be stored as a) a colorId as reference into an internal color table (Default) b) RGB values of the color c) a special color id ByLayer, that says: color is defined by layer Usually the color is defined by color id. Imported 3d graphics may store RGB values directly If the ColorId==ByLayer then the color must be taken from layer If the TransparencyDefinedByLayer is true, then the transparency must be taken from layer otherwise the transparency is stored in this object The mapping between R,G,B values and colorId is done in a way that at first there is checked background-dependant palette and afterwards extended one.

public struct Color : System.ValueType 

public value class Color : public System.ValueType