First off, I found a nice little tutorial on how to make your browser save your skin/theme settings for a page <Working With Alternate Style Sheets>. A copy and paste job later, my blog now remembers your skin settings between pages and sessions.

I'm also working on getting skin support in my Files section. All of the file icons are now themeable among Classic Red, Classic Green, and Classic Blue. There are some other images that I haven't yet tossed into the theme system, and I'll do those soon. The file browser also remembers your settings, but it doesn't synchronize with the blog yet. I'll figure out how I'm going to do that later.