Are there any accurate sources for colour for the SE's? I know that the colours were tweaked for the 2004 masters (including the ridiculous level adjustments that washed out the saber cores/laser blasts/random shots), and shots given colour tints.

The way I understand it (and vaguely remember it in the cinema) is that the SE's have a colour-timing closer to the THX OT. I've been colour correcting TESB from the Blu-Ray and I've come up with some pretty good results so far, but with only analogue and broadcast versions to go by, which need colour corrections themselves, its been difficult to discern what is accurate and what isn't from memory.

I've also identified shots where white levels have been dialed down and was shocked to see how awful it is in places. The final shot of ANH is clearly a victim of this, along with the lightsaber cores/laser blasts/explosions/various random shots in every film.

Is there anything that can be used a reference?