The bluray certainly is the worst color reference to use, as it was heavily altered when it was digitally color graded to fit GL’s vision. There literally is nothing authentic in the bluray color grading, as it was scanned directly from the negative and completely regraded. The GOUT, just like any of the laserdisc masters was also regraded, where the brightness and contrast were adjusted on a scene by scene basis to fit the low contrast medium they were made for, so they do not correctly represent the variation in the grading between scenes. Take the JSC, where the R2 canyon scene was noticably brighter than on any print scans we’ve seen. The Technicolor print scans are definitely the most accurate source for both the colors and luminosity, despite the problems of green shifts and other issues that we know of.

The magenta and green blotches in the Tarkin frame are artifacts that are being corrected as I’m writing this. Many of the Tatooine are preliminary. The only gradings the are close to finished are on the first page.