none said:

One sign of recompsitioning is the white streak just below the bottom most edge of Vader's TIE. In the GOUT there's a space between the black wing and the white streak. (but it could be they've painted in a bit more of the wings, as the left bottom Vader TIE wing edge is pointer in GOUT) In 2004 and DeEd the white streak seems to go under the TIE wing. But most of the edge relationships seem the same, even the star locations. Otherwise this seems to be part of the color debate. Will look at it in motion.

What you describe is most likely caused by the DVNR, the same frame on the Special Collection LD:

I would say this one is a transfer issue as opposed to deliberate change, these color oddities, mostly on opticals, exist between transfers of the unaltered films as well. How they happen is a little mystery to me, especially on the older video transfers as you cannot just get the correct color back by adjusting the timing. A green TIE laser can suddenly be either completely yellow, pink or blue in one scene where everything else in that frame is normal and accurate, the same can also be seen with explosions, graphics on screens, lightpanels etc. But it's of course easier to determine what is a color glitch on the unaltered films compared to what is seen on the 2004/11 versions.