# Theme (Light/Dark Mode)

Supervertaler supports light and dark themes. Switch between them in **Settings → Theme** or via the toolbar theme toggle.

### Why use Dark Mode

* Better comfort in low-light environments
* Reduced eye strain during long evening sessions
* Lower screen brightness without sacrificing readability

### Switching themes

The change takes effect immediately – no restart needed. All panels (grid, companion tabs, dialogs, popups) switch at once.

### Tips

* If any UI element looks visually wrong after switching (rare Qt repaint quirk), try switching to a different tab and back, or restarting the app
* Dark mode does not affect PDF Rescue's OCR output or exported DOCX files — those are document colours, not UI colours

### Related pages

* [View Settings](/help/settings-1/view.md)
* [Font Customisation](/help/settings-1/fonts.md)


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