typedef struct rgb_color { byte r; byte g; byte b; } tcolor; static const tcolor white = { 255, 255, 255 }; static const tcolor cyan = { 109, 209, 255 }; static const tcolor magenta = { 156, 89, 209 }; static const tcolor light_magenta = { 234, 150, 170 }; static const tcolor red = { 255, 0, 0 }; static const tcolor grey = { 170, 170, 170 }; static const tcolor yellow = { 252, 244, 52 };