I seem to have added colorful sidebars to my Mac while I was using Lion or something. Now, after upgrading to Mavericks, this happened. I think it has to do with the colorful sidebars. But I can't remember how the colorful sidebars appeared in my Mac. There is no colorfulsidebar bundle in the SIMBL Library folder on my Mac. So it can't be colorfulsidebar. Could it be Onyx? If so, I'll have to wait for Onyx to be updated for Mavericks so that I can undo the colorful sidebar and get my colored tag icons back. Thanks!