GE2 GUI Prototype 1.3

Hi.

Another little update regaring new GUI system.

A few things that I managed to add:

1. Custom cursors for any type of control (You can see that in a video, how cursor style changes on hover event)
2. Focus - Control that was used recently recieves input from keyboard.
3. Switching between controls with TAB key. Kinda basic function that everyone uses in windows but a little harder to implement than it may look.

Here is another video that shows the recently added features: