# Admin appearance modes

The BeatBook administration backend now supports three appearance modes:

- Light
- System (follows the operating system appearance and updates live)
- Dark

The switcher is in the administration top bar. The preference is stored in browser localStorage under `beatbook-admin-theme` and is applied in the document head before Vite assets load to prevent a light/dark flash during navigation.

The theme affects the admin shell, sidebar, header, cards, CRUD tables, form controls, search fields, badges, flash/error messages, buttons and date/time inputs. It does not alter the public BeatBook site.