This theme really defines the tool bars, allowing the MFF user to customize their toolbars better since, optically its easier to mentally organize where everything is, if that makes since. I can clearly see all the buttons, where with other themes i might loose sight of certain buttons and forget they are there, and while using the Themes made by Pernis, I can mentally keep track of all buttons that I placed throughout the browser, and use them as I intended to use them when I initially customized the FF-Browser.