this ol hack

Better yet, the ability to add custom types / icons. This should be relatively simple as that's almost out-of-box functionality for most web applications these days (in terms of a form to add a name/description, upload an image, and assign to an entity). If you really wanna knock it out of the park, add an API and ability to write your own Rapps. In case you haven't figured it out, I'm a developer so always full of ideas.