make split screen a better experience

Is there a way to make the split screen tabbed control a better experience?
See screenshots. If you have dark background command windows you can see that when you grab a window to do split screen, you can't really see the controls in the middle of the screen.

Also, the controls are very small. You can only do split screen if you drag the window into a tiny 'folder' on the top, left, bottom, or right that is only a few hundred pixels in size. Why can't this be much bigger? 300 or 500% larger? It would make doing split screen easier and faster since you can drag more quickly.