Best Dark Mode Tool for Long Late Night Study Sessions

Long evening study sessions are easier on a screen that isn't mostly white.

Modern Dark Mode turns bright pages such as course portals, articles and online databases dark: white backgrounds become dark gray and text light gray. Turn on "Auto-enable by schedule" in Advanced Settings so it switches on in the evening, and use the Brightness and Contrast sliders if the text feels too faint or too bright. It doesn't change PDFs opened in Chrome's built-in viewer, since extensions can't run there. Breaks matter as much as colors: the common 20-20-20 rule is to look at something about 20 feet away for 20 seconds every 20 minutes.