RGBType           331 ext/gd/libgd/gd.c static HWBType * RGB_to_HWB (RGBType RGB, HWBType * HWB)
RGBType           355 ext/gd/libgd/gd.c 	RGBType RGB1, RGB2;
RGBType           390 ext/gd/libgd/gd.c static RGBType * HWB_to_RGB (HWBType HWB, RGBType * RGB)