Badge or highlight system for "Official" or "Verified" groups?

I’m working on a buddypress community, and I find it better for niche markets than a forum. Especially since visitors can create their own highly-specialized groups, no forum system could support that.

But if I have a “main” group, say called “PC Gaming” and over a few weeks, visitors make groups like “Gaming on PC” or “Computer Gaming”, I’d like to differentiate the official group and highlight it. Even moreso if it’s related to a company, group, or person.

Anyone have an idea on how to create a custom border, maybe with text to the side or above the group name that designates it as “Verified”?