There's still no proper app windows yet (because I have yet to figure out which app windows to use), but I added in a user menu. The user menu would show the battery percentage and would contain the power options. The reason why the username is just [USERNAME] and why the Battery percentage is just "BatteryPercentage%" is because the proper information has yet to be added in.
@AlejandrixKing245 - for developing AleOS Fiber