Don't laugh, it has real consequences on health: "black text on white paper heavily overstimulated retinal OFF pathways. Conversely, white text on black paper o

Don't laugh, it has real consequences on health: "black text on white paper heavily overstimulated retinal OFF pathways. Conversely, white text on black paper overstimulated ON pathways." https://www.nature.com/articles/s41598 https://www.nature.com/articles/s41598 I have good experience using the theme-changer package in emacs which turns dark theme after sunset automatically.