My 2 cents:
Fantastic theme. And it SHOULD be included in the next release, either as default or an alternate.
I LOVE the new buttons. The icons ned to be changed a little (If you want, go to my site and take our icons, they blend in well with this theme).
I only have one little suggestion.
Near the bottom of the message index, where it has the "key" for read and unread messages. "Something" needs to be done with that. It at minimum needs a space between that and the next area (the info center at bottom)
But that key just isn't as "gee-wiz" as the rest. It needs a little dressing up.
Again, one of the best thems SMF has to offer. Top 5 for sure. Should be default, or included in standard package.