Probably a stupid idea, but I would like to be able to lower the white background ingame's brightness. This would be useful for viewing light flames without putting on shaders, which I hate using.

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This would be pointless to be completley honest .

Not exactly pointless. It's not a bad idea either. It could help the video community. So maybe they can make it pitch black and show the fighter's flames. You can say shaders exist and more blah blah blah but not everybody can support shaders.

Most monitors like mine, have a brightness option. So this is useless for me.

Play on medium graphics.

A computer brightness option dims your whole screen! Not a certain atmosphere in a game.