Took me a while to do this becouse I used letters.png for the window. And I just had to make one function that draws any number of windows at one time.
Right now it's only windows. Moveable , Resizable , Titles can be edited. But once im done. (will be a while) One could theoretically monitor anything from health to bombs to any string. Perhaps the time. Or maybe drag a weapon from your inventory to make a quick select box. All customizable.