RED = (255, 0, 0, 255)
YELLOW = (255, 255, 0, 255)
GREEN = (0, 255, 0, 255)
CYAN = (0, 255, 255, 255)
BLUE = (0, 0, 255, 255)
VIOLET = (255, 0, 255, 255)

WHITE = (255, 255, 255, 255)
BLACK = (0, 0, 0, 255)