So today I was messing around and trying some new themes, and after doing one I ran into a big problem. I reset my computer and I cannot see any desktop icons or my menu bar. I cannot open the finder and anytime I click an application, it will open briefly, my desktop icons will open briefly, and then the application will quit unexpectedly, and the icons will disappear once again. Is there any way I can reset the theme back to the Mac default? Keep in mind I cannot open any applications including Terminal as far as I know. Thanks in advance.