I'd like to first mention that, after 7 years, I am rather disappointed in the lack of improvement on the general "polishedness" of the game.
That said, I want to point out a specific issue I am having at night time with certain things being pitch black regardless if the moonlight / gamma correction. I would post a screenie, but printscreen seems to only generate solid black images.
This seems to be a bug that occurs after running for a few hours, and happens in conjunction with the DR being plastered with the wrong texture.