Bug 1041710: Ensure that wallpaper images always exactly match the size of the screen

Yes, but if I did that then I'd have to type this.debug() which seems weird to me. And I hate typing 'this' when I don't have to, so I'd likely end up using console.log()! This is an easy change if it is something you really want, but I think I might leave it for you along with the method naming you propose.