Add-on themes for Beta?

Is there any way to add additional themes to my account? I prefer the Sante-Fe them, but it's not included and I see no way to upload or choose additional themes. Any plans for adding more themes, or at least the ones available for Omeka? Thanks!

It is not possible to add themes to an site, because you do not have access to a server.

We are preparing to make more themes available for, but their availability is based on the plan you choose.

Thanks, Sheila. I have the silver plan, but wasn't sure about the availability of more themes. Keep up the good work!