I know there is a history between Ady and Angel/Vaderios that need not be gone back over here but some of his mock-ups where the Falcon interior from ANH was given the ivory colours of the ESB/ROTJ set and where Threepio's eye lights were turned up in ROTJ to match those seen in ANH and ESB helped unify the look of the trilogy a great deal in my view.
I'm not sure how doable those things were to do in motion though.