There, This functionality may already exist but I haven't

Hey There,

This functionality may already exist but I haven’t been able to locate it in a plugin or add-on.

I love how the “pretty plugins” plugin allows me to create a nice icon based plugin layout for my clients, I also love how I can create categories to group plugins together.

I was wondering if it is at all possible to do this with themes aswell?

Say for instance I wanted to group all themes together that are great for photographers to display their work. Or maybe I wanted to create a group of themes that are best used when creating an e-commerce site.

Is there a way to do this? And have them display in the same fashion as pretty plugins?