Here's the mandatory screenshot:

A couple small problems so far. The so-called themes, aren't all really themes. Pink bunnies is really just a widget style, so needs a whole theme to make it work right (shouldn't be hard to do), and for some reason downloaded slim-glow and ozone don't appear in the drop-down, while Akoma, Aya, and TiComb do (maybe we only scan capital letter folders). Also, heron unpacks without a folder for itself, so maybe wait for the author of that one to repack it into a heron folder before trying that one.
Otherwise, enjoy!
P.S. the above screenshot was taken on my work pc which is not using goya, in case anyone was wondering.