Just basic HTML/CSS/Javascript built around the Graphite JSON APIs. We have Hubot integration to build graphs on demand through commands in Campfire, a Graph Store to save graph configurations, and static HTML pages that arrange these graphs nicely.

They are beautiful, especially compared to the built-in dashboard UIs. If you're looking for yet another piece of infrastructure code to give away for free, I'd love to see it open-sourced.

You might be interested in https://github.com/paperlesspost/graphiti

It's somewhat based on some of the stuff Github uses internall for graph generation (so the README says).