I can clearly see a difference between 'identity-lut.png' and 'lut-day.png', but replacing the latter with the former doesn't seem to make anything dimmer. There's also a subtle difference between 'lut-day.png' and 'orange-dawn.png', but as noted above nothing seems different if I replace 'orange-dawn.png' with a significantly different custom version.
So basically my questions are:
- How many of the LUTs are actually used by the game?
- How are they used?
- Is their disuse a bug, or am I doing something wrong (or expecting the wrong thing)?