feat(ui): refine Graphite visuals and center navigation content

README.md

@@ -71,6 +71,9 @@ inside your existing Wayland desktop.
 ## Configure
 
 Open **Control Center → Settings** or edit `~/.config/ferese/config.kdl`.
+The [visual direction notes](docs/development/visual-direction.md) document the
+Graphite dark/light family and the responsive settings layout.
+
 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