Hm, I'm playing with adding some more, well, taking away some of the plainness by adding stripes:

I'm not sure if I like it. Maybe I'll try making the stripes more subtle... or I'll just trash the whole thing. I'm setting it up so you can choose different skins for it, after all.

Edit: No, I just looked at it and decided that it sucks. But I'll keep experimenting- in fact, I might just give some people property names to fill in with background colors and images, and let people make their own custom color scheme for the site.