I tweaked the gamma value to 2.2 in an old version and want to change it to a higher one now. And when the next time I run the game it became 2.2 again. I believe the default value is 2.5 so I think this it must be stored somewhere but the game does not write the setting when quit. Plus, I want to know where is this value actually stored.
The game remember the old setting of gamma value.