Yeah for whatever reason, textbook paper always has a glossy finish to it. Combine that with bright overhead fluorescent lights in a school and I could see how that could be irritating as fuck.

Other types of written material don't seem to have a glossy sheen like works of fiction and dictionaries. Do you still have issues with those or no?

I'm with you. I've been using invert colors before dark mode became cool. If only I could do it in real life...