Appearance
General Text supports light and dark modes, plus multiple color themes that work in both modes.
Switching modes
Click the sun/moon button in the You bar at the bottom of the sidebar to switch between dark and light. You can also change it in Settings → You → Appearance.
Color themes
Settings → You → Appearance browses the color themes. Each theme defines a set of accent and background tones. Themes are independent of light/dark mode: pick a color palette you like and it works in both.
Synced preferences
Your theme and mode are saved to your login and follow you across browsers, the desktop app and your phone. Change it once, see it everywhere. Apps inherit it too, so a dark shell never opens a bright white app inside it.