Various changes, in expansion, rgb, js

by Willy-JL , Spooks4576 , Sil333033 , HaxSam

applications/system/js_app/examples/apps/Scripts/submenu.js

@@ -0,0 +1,11 @@
+let submenu = require("submenu");
+
+submenu.addItem("Item 1", 0);
+submenu.addItem("Item 2", 1);
+submenu.addItem("Item 3", 2);
+
+submenu.setHeader("Select an option:");
+
+let result = submenu.show();
+
+print("Result:", result);