# Theme

Source: https://userguide.qualytics.io/using-the-platform/web-app/top-right-menu/theme/

Qualytics offers three theme options, **Dark**, **Light**, and **System**, so the interface can match your environment and personal preference. The theme is set from the **Appearance** menu in the top-right toolbar and remembered across sessions on the same browser.

## Theme Options

| Theme | Behavior |
| --- | --- |
| **Dark** | Dark background with light text. Reduces glare and eye strain in low-light environments and can save battery on OLED screens. |
| **Light** | Light background with dark text. Best for well-lit environments and prolonged daytime use. |
| **System** | Follows your operating system's appearance setting automatically. If your OS is configured to switch between light and dark on a schedule, Qualytics follows it without manual intervention. |

## Change the Theme

**Step 1:** Click the **Appearance**  icon in the top-right toolbar.

**Step 2:** In the **Theme** section, select **Dark**, **System**, or **Light**. The interface switches right away.

> **Tip: Persistence**
>
> Your theme choice is stored locally in the browser. The toolbar icon stays the **Appearance** icon whichever theme is applied.

*Last updated: October 7, 2026.*