It doesn't. The point is that for tiny apps it doesn't matter - you can replicate that interface in 3 toolkits very easily.
Same applies to applications that want to display 3 edit boxes, an image and 2 buttons. Just do it in the native framework 3 times. It's not that much work.
Same applies to applications that want to display 3 edit boxes, an image and 2 buttons. Just do it in the native framework 3 times. It's not that much work.