Today I accidentally pressed some combination of keys and discovered that DF has a monitor dimming feature. So I went to the settings tab and first, disabled the feature, and then I removed the combination of keys so that I never make that mistake ever again. But then, when I double-checked if it worked (yes, I clicked Apply), it turned out that the box next to the "Enable dimming" is still selected. No matter how many times I de-select it, and click Apply, it still turns on itself. Fortunately, the feature itself is inactive, so my monitors aren't constantly dimming, but It looks like it might be some small bug.

EDIT SCRATCH THAT. Once I restarted PC, the screen started dimming again! But now the option doesn't reactivate... so... uh.... one bug fixed the other...? I will need to test that.

EDIT 2: Oh, for crying out loud, it's still dimmed after a restart! What the F?

Jesus christ, how I hate when programs do something I didn't tell them to do.

EDIT 3: Okay, reinstalling displayfusion *seems* to have fixed that, though I had to remove the shortcuts.