Single namespace is fine

bin/omarchy-menu

@@ -322,7 +322,8 @@ show_screensaver_menu() {
 }
 
 show_theme_menu() {
-  omarchy-launch-walker -m menus:omarchythemes --width 800 --minheight 400
+  theme=$(omarchy-theme-switcher)
+  [[ -n $theme ]] && omarchy-theme-set "$theme"
 }
 
 show_background_menu() {