registerOperatorProcessor("rg", new SetNonStrokingRGBColor());
registerOperatorProcessor("RG", new SetStrokingRGBColor());
registerOperatorProcessor("SC", new SetStrokingColor());
registerOperatorProcessor("SCN", new SetStrokingColor());
registerOperatorProcessor("sc", new SetNonStrokingColor());
registerOperatorProcessor("scn", new SetNonStrokingColor());
// Graphics state
registerOperatorProcessor("Q", new GRestore());
registerOperatorProcessor("q", new GSave());