possible bug report - branding plugin

Not sure if this is the best way to report a bug or not. Anyway, here it is...

I noticed a color reappearing in my adminbar when viewing sites from the front end. This color doesn't appear anywhere in my Ultimate Color Schemes settings, nor in my custom CSS:

#wpadminbar .quicklinks .menupop ul.ab-sub-secondary, #wpadminbar .quicklinks .menupop ul.ab-sub-secondary .ab-submenu {
    background: none repeat scroll 0 0 #4b4b4b;

The weird thing is that it only happens on the front end, not when in the dashboard.