When I updated to this new version, in the back of my mind I expected that my CSS changes would be lost. That's ok, my bad. I am new to WordPress and I should have known better.
However, and I'm trying to be polite here, the new list type editing you've put in is the least user friendly thing I've ever seen added to anything, ever. Why would you possibly think that users would want to first copy their cryptic settings, decode them, wade through the undocumented settings, then re-encode them? It's just mind boggling.