solved
I seen http://unity3d.com/learn/tutorials/modules/beginner/ui/ui-slider and for HOURS I have been trying to find out how to make a new slider background? They seem to be some kind of sprites? I can’t just add a .PNG to my project and drag it into my slider background.
Please help! I am going insane over this!
Unity3D is 100% illogical. Can’t find anything with ease.