X defaults to "Dim" mode — a grey-blue background that's easy on the eyes but brutal on OLED screens. DarkFix forces true #000000 black on every element, saving battery and your eyes.
Click this on any X page to force true black backgrounds on all UI elements instantly.
🌑 DarkFix — Drag Me↑ Drag to bookmarks bar · Click on any X page to toggle true black
Drag the DarkFix button to your browser's bookmarks bar.
Works on Chrome, Firefox, Safari, and Edge.
First click activates true black mode. Click again on any X page to disable. Lasts for your current session.