feat(settings): add grouped configuration hub, languages and tray controls

README.md

@@ -71,6 +71,23 @@ inside your existing Wayland desktop.
 ## Configure
 
 Open **Control Center → Settings** or edit `~/.config/ferese/config.kdl`.
+This fork adds a grouped **Appearance** settings hub. **General → Language**
+supports the system language, 简体中文 and English and saves the choice as
+`ui { language "zh-CN"; }` (`auto` and `en` are also supported). It changes
+Ferese's interface independently of keyboard layouts and input methods.
+
+**All options** exposes the compositor's complete configuration schema, including
+nested lists, maps and optional sections. Confirm text with Enter and apply the
+whole draft; validation, conflict detection and backups use the normal Settings
+save path. Basic settings continue to save immediately.
+
+**Tray icons** controls panel status icons and StatusNotifierItem application
+icons. Applications can be hidden individually, including after they exit. Tray
+preferences live under `status { tray { enabled #true; show-passive #false;
+icon-size 16; hidden-items "application-id"; }; }`. Existing custom panels can
+add an **Application tray** item in **Panel & Shell**. The compositor, Shell and
+Settings must be built and installed together so the schema and editor match.
+
 The [configuration reference](https://github.com/ferese-wm/ferese/wiki/Configuration)
 and [example config](packaging/config.kdl) cover appearance, layouts, displays,
 window rules and startup apps.