Checks if the color is specified by the layer object on which the object resides (color method of this color is set to "kByLayer", or it is set to "kByACI" and ACI color method is "kACIbyLayer").

true if the color method of this color is set to "kByLayer", or if it is set to "kByACI" and ACI color method is "kACIbyLayer", false - otherwise.