Make the floor white, and the walls different colors you can verify the color bleeding as light is diffusely reflected off of the walls onto the floor.
(you; can verify; the color bleeding) (the color; bleeding; T:as light is diffusely reflected off of the walls onto the floor) (light; is diffusely reflected; off of the walls)
you the color light
can verify bleeding is diffusely reflected
the color bleeding
T:as light is diffusely reflected off of the walls onto the floor
off of the walls