Ok so I am just messing around and trying my first theme. I am not much into colored themes but I do like themes that replace icons all together. If I want to replace an icon does it need to be replaced with an icon of a similar size? Say I am replacing the browser icon which appears to be 72x72 should I find one that is 72x72? Any help would be greatly appreciated. I would try to search but I am really focused on trying to figure this stuff out, haha.