GDark: Dark mode for Gmail & Chat

This tool darkens the white areas of Gmail so you can work at night. It is a minimal simple darkening of just the white email area and bits of UI, not effecting whatever theme you've selected. So if you already have a theme you like, this doesn't change your theme, it just makes the email area itself dark. Completely private to you. The only thing stored is your chosen mode and schedule, in the browser's own extension storage. Works well with Gmail's Dark theme (Settings → Theme → Dark). Not affiliated with Google; Gmail is a trademark of Google LLC.