To be honest, not that much is different. We went through a number of the
forumer provided skins for the forum, and we liked this one best. (We did briefly consider a nice green scheme, but in the end decided that blue was more work friendly.) Posters who were around for Snarkfest v1.0 will probably recognize it as the same.
Things are more blue than the old board. On the other board, there was a gray/purplish background to the forum lists and on the date lines and such (you can see a cached version
here). Some other things that are different are the arrows showing new posts in each forum section (i.e. Television or Lit & Multimedia), the font size being slightly bigger, 25 posts per page in a thread and 25 threads per page in each forum view. There are some other little differences, but mostly it was a matter of keeping what we liked from the skin and taking out what we didn't. Sorry that it isn't deeper than that :P
Cleolinda made the new logo, though spidey_88 made a very good one that we nearly used, except that it was green to match our first look.