Addon not working properly when using classic ui

So i used to use pocket ui back in the days and now i am using the classic/desktop ui. And whenever i want to use the addon iron man hud by jimbo_acob in classic ui, it doesnt look like what the creator describe. After that, i tried using pocket ui and it works. I dont know if this is a bug or intended but please if this is a bug then fix it. Thanks.