That may well be enough right there. I did not know they revised colors. That's quite surprising actually. But I guess that's one way to guarantee you will continue to sell the very expensive books! (that's reason I don't have an actual chip).
If you're in Silicon Valley, you might want to take a trip up to Stanford which houses all of Apple's early corporate archives. Acess to those files would answer a lot of questions definitively that come up on here often.
So if any of us need a Mac repainted we should send it to you?