Just installed the latest version of admin bar and found a yellow border around it. This comes from blueprint css forms.css file that also got a class of .notice, like your li-element that holds the "debug" link in the admin bar. Imho a plugins css shouldn't be that native that it uses a class like .notice, .error, .success or .info. On the other hand i couldn't even find any definition that would make use of it. Please remove or changes this. Thank you.