I found this add on to replace Quantum's new tab feature, which has too much white space that cannot be changed. Bookmark Dial makes the new tab more like it was before Quantum. So far it works as expected, I like how I can easily manage the bookmark folder I want to use with it. But it appears to have an issue with the options. The options page does not display from the add on tab. Instead when you click the Options button, it takes you to the about page for this add on. The Bookmark Dial options does appear from the toolbar, however, the color chooser does not work from there (a known defect). So at this time with Quantum, it seems like it is not possible to change the color. If you are happy with the default black, then this is not a deal breaker.