Re: Admin bar mouseover issue
Brian, the file itself is in bp-core/css/admin-bar.css, but like Jeffca mentioned you can also make a site-wide.css file, and place it in your currently active home theme\’s /css directory, and it will work everywhere within your site, even inside the member theme.
That way you\’re only editing one file, and it\’s on your own terms.
I’ve added my fix to a trac ticket so it will get reviewed and possibly fixed in the core for future updates. The goal with all of this is NOT to edit or hack the core, but to have the core be as universally compliant as possible, and still allow for customization later.