Re: the 19SE OT looking duller colorwise compared to the 2004 master, there’s a couple things to consider here. For one thing, we’ve gotten so used to the ‘04 look that it seems jarring.

The other thing to consider is the OT’s place in the context of the I-IX saga and how we go from the colorful prequels in the waning days of the Old Republic to the sterile, totalitarian reign of the Empire in the OT. The ST seems more “naturalistic” in its look to me than either of the other trilogies.

Obviously this puts aside how the OT actually looked in its original run and in ‘97, but the consensus seems to be that the new master looks much closer to the original colors than the ‘04 did anyway. The prequels, meanwhile, also seem closer to their theatrical colors than they did in 2011.