Wouldn't this giant ass book of prints confirm that Lucas isn't changing the colours? I mean he went through the original trilogy FRAME BY FRAME. For years. They started doing this in like 2005 or something, with Lucas personally taking the time over three or four years to view the films in a frame by frame way and make selections. It's not like he can have the excuse some people attribute --"oh, well who actually watches their own films?" Not only does he watch them, he combed through them frame by frame, which took him years to do, and then spent another few years going over the selects and narrowing the total down.