That video demonstrates the problem exactly. The "before" shot shows a clip from Lightyear which takes place in the black of space, and the screen is filled wit

That video demonstrates the problem exactly. The "before" shot shows a clip from Lightyear which takes place in the black of space, and the screen is filled with high-contrast bright colors on a completely-black background. The "after" shot is of a bright sunny day where a car (low contrast despite the bright red color, to my eyes) drives through a desert. You could hardly ask for more directly opposite videos. For a real comparison, I'd have liked to see the same Lightyear clip on both setups.