A popup engine that uses 1 clone and stamps per popup You can close popups via their X You can drag windows by the bar (and the bar only) Each popup uses 4 costumes: 1 - the window 2 - the title (or cosmetics) 3 - the hit box for dragging (it's invisible) 4 - the hit box for closing (also invisible) The 1st costume is used as a ID The only thing this does not have is: layering
yes I have made pen-based windows before, except entirely made from pen, and they had a button that hides their contents, and various other things
