Maaga said:
There also seems to be a lack of rich blue that is suddenly corrected. Palpatine’s outfit turns really blue (and I love it) in one shot but that disappears in the next. I also miss the rich blue the royal guards had.

I had the chance to go to the Star Wars costume exhibit. None of the costumes for TPM had rich blues in them. Palaptine’s was dark turquoise and purple, and the guards were very dark. I too remember seeing TPM where it had very rich blues, but that doesn’t appear to be accurate to the actual film. And from the way the movie was processed, the Blu-ray version is probably more accurate to what was shot than whatever film print we saw in 1999. I think I was at a 70 mm premier. But the costumes definitely had no bright blues. The handmaiden costumes on the other hand were very intense orange and red. And that does show up in many shots. But I spent countless hours trying to get the blues I remembered until I actually saw the costumes in person and found out that there was no such blue in them.