#define RGB_BLACK (0)
#define RGB_BLUE (0xff)
#define RGB_BRASS (0xc3a368)
#define RGB_BROWN (0x8b4513)
#define RGB_CADETBLUE (0x5f9ea0)
#define RGB_CHARTREUSE (0x7fff00)
#define RGB_CORAL (0xff7f50)
#define RGB_CYAN (0xffff)
#define RGB_DARKGREEN (0x6400)
#define RGB_DARKKHAKI (0xbdb76b)
#define RGB_DARKOLIVEGREEN (0x556b2f)
#define RGB_DARKORANGE (0xff8c00)
#define RGB_DODGERBLUE (0x1e90ff)
#define RGB_GOLDENROD (0xdaa520)
#define RGB_GRAY (0xc0c0c0)
#define RGB_GREEN (0xff00)
#define RGB_KHAKI (0xf0e68c)
#define RGB_LEMONYELLOW (0xfde910)
#define RGB_MAGENTA (0xff00ff)
#define RGB_MAROON (0x800000)
#define RGB_NAVYBLUE (0x80)
#define RGB_ORANGE (0xffa500)
#define RGB_PINK (0xf77fbe)
#define RGB_PURPLE (0xa020f0)
#define RGB_RED (0xff0000)
#define RGB_ROYALBLUE (0x4169e1)
#define RGB_SALMON (0xfa8072)
#define RGB_TURQUOISE (0x40e0d0)
#define RGB_VIOLET (0xee82ee)
#define RGB_WHITE (0xffffff)
#define RGB_YELLOW (0xffff00)

#define RGB_GRAY6 (0x606060)
#define RGB_GRAY8 (0x808080)
#define RGB_GRAY10 (0xa0a0a0)
#define RGB_GRAY12 (0xc0c0c0)
#define RGB_GRAY14 (0xe0e0e0)