Chris, unfortunately Lars is on vacation and Jeff Davis is leaving on vacation in a week or so. They've both been working on css and master template issues including the context_bar property so before adding any change I'd like to see them have a chance to take a look ...
You might e-mail Jeff ASAP (look under "Community" and click the link to the site member directory to find his e-mail address) and ask him to look at your code.
If you get review I don't mind letting you commit the changes directly ...