The default folder icons in OS X "open" when you drag an item into them. I don't care for the look of most of the default OS X icons, so I've modified them using CandyBar and a fairly old set of icons (see attached screenshot) I've been using since the Jaguar days. But this means missing out on that tiny bit of animation, which is actually quite useful when you want to know if the item being dragged has registered with the folder you're dragging it into. So does anyone know of an icon set with a folder that "opens" when you're dragging an item into it? Or is this only possible with the OS X default icons?