New cursor and mouse flight indicator

I've finally got around making some simple cursor that fits the other parts of the new UI better. Nowhere final, but I think it's a step up. It's slightly gray and has a simple shadow, so it won't get lost even over full white areas (which are rare anyway).
Also I've replaced that strange mouse flight indicator cursor with a simple diamond shape. It's stretched a bit, so it won't look off on 16:9, which is an ugly hack. I'm guessing, most players are using 16:9 monitors these days, but if you guys think it should stay 4:3, I can do that in no time.