Sorry, if my comment started something here...

Anyway, here's what g-force's script says,

########## black level/gamma, hue
Levels(10,1.08,255,0,255).Tweak(hue=-3)

it improves the black level and tweak the hue towards yellow, and I think he has found a great overall balance for it. I've tried to make my own settings several times but I always come back to these same values as I think it doesn't hurt other scenes in the films that much. It really is a compromise, it would of course be great to tweak some scenes individually, the binary sunset for example, but I don't know if it's really worth the trouble with this source.

But all this would maybe fit better in g-force's own thread, cause if I understand this correctly, dark_jedi only set out to make g-force's latest version more widely available for people, not tweaking it.