This iis theh thing to understand as well often times the computer will give true colors even when light perfectly ! meaning that those colors very rarley are that truein life if you look at the red ball in the grass on a sunny day theres probaly actauly very litle true red more cyan pink etc but we still know its a red ball ablve in mullins pic i know its a paintng but in the movie youd probaly be fooled becuase its painted in a way using lighting that your mind would average for an example if you look at a brown or black horse on a bright day from a distance you know what color is a mix of brown and black, but if you look closer youll see the averged saturation color is greyish. If you painted a grey hoarse with tocuhes of brown and black instead it would look more realsitic to the mind than just thinking theres a black horse and painting it black same with the pic above ,look at it for just a second and you think thats a green room but then take it in to photoshop and youll see theres very lil true green at all but more of an averaged colors combined kinda getting off the deep end here so ill stop but just some things to consider