Earlier versions of 4K77 used an upscale of the crawl from the Silver Screen Edition. For the Bluray ISO version of Star Wars 4K77, we went back to the print elements used for the Silver Screen Edition and rescanned them in 4K. TN1 member, SkyDude, spent a long time on the cleanup:
"It was cleaned up (a lot) and stabilized/dewarped and CC'ed. Had to do some gradual color corrections (using an adjustment layer with a very wide horizontal feather in Ae) too as there was some sort of red light leakage coming from one side.
Also the letters and the stars received separate color corrections (using manual masking in Ae) as the print was very faded and pretty much everything was the same color. Also chroma keying of the letters was used for separation in one of the many passes."
In this video you can also see where the Eastman stock ends and the LPP stock begins. The original crawl on the LPP was in Spanish but the previous owner of the print spliced in an English version). The LPP stock is unfaded, while the Eastman section has of course turned pink.