What the title says, and unfortunately I'm not sure why. If a theme isn't perfectly looped, it's...really noticeable. And I hate how ugly some themes turn out as a result. I don't want to start sticking my hands directly into firefox's advanced settings, since I don't know much about them and don't want to risk accidentally deleting or messing with something important, but I'd really like to get this fixed somehow... Is it just the themes I'm picking? Are they supposed to all be skewed off to the side? Or is something off with my browser? Maybe my resolution's weird or something...?