Move the mouse pointer around and I'll tell what it's hovering over (including buttons outside the stage). Please leave feedback if the detectable locations are very far off on your device.
Thanks to @CST1229 for the original off-stage mouse pointer detection code. As well at the objects this can detect, there are others that it doesn't try to detect because they move around depending on the individual device screen layouts. The reason that it's not practical to make this mobile-friendly is that on a touch-screen, you can't hover "over" a button (without clicking it).
