I'm another for dark mode. I've been doing it for years when it's been available and I switched my phone because my previous one didn't have it. Even with the backlight cranked all the way down it was physically painful to look at. Others have suggested turning up the lights, well you can't do this in vehicles driving at night. It's also difficult if you're sharing a room with someone. I suspect I may be outside the range of normal people as going outside without sunglasses isn't a pleasant experience for me and I've got added sensitivity due to chemo. I do happen to be night owl normally not sure if that really matters or correlates to anything. I don't have the same problem with books, just items with backlighting.