ROTJ’s 19SE (SDR) colors look just fine to me. Moreso than the new ANH or ESB. Maybe it’s because the 2004/11 transfers were just the worst.

Anyway, I find that increasing the brightness somewhat and dialing the saturation up 20% makes it feel like it could fit in reasonably well with the modified 2011 version of the other two films without taking things too far.

To adjust the brightness, I increased the whites by 13%, the midrange about half that much at 6%, and left the blacks where they were. It looks good to me, anyway, and hopefully that logic is sound.