In order to improve the usability of the admin interface, should we include an admin theme in Panopoly?

We attempted to improve the admin experience a little by bundling Open Sans, but we're going to remove that or make it conditional: #2063541: Remove Open Sans?

However, doing fonts at the module level is tricky. Including this a the theme layer will be less problematic. Even D7 out-of-the-box includes an admin theme. :-)

It's planned that we're going to add Radix: #1987386: Include Radix theme in Panopoly

So, Unary, an admin theme based on Radix is a possibility!