Dark mode was a mistake. Early LCDs were dim so everyone cranked up the whites to make up for it. Now LCDs have caught up and it burns a significant number of peoples eyes, so we increasingly have to support two modes. Apples comically ugly dark mode icons shows how hard this is to do well.

I think the ideal thing to do would be to move back to greys as the base color for computer interfaces, like we had when bright CRTs were the norm. This has the added advantage of allowing depth affordances in UI elements, which we should also bring back.