The more observant amongst you may have noticed my blog looks a bit different now. As I write this, it's a pale blue-grey background, green headings, black text and blue links. This may change - an image behind the title would be nice, for instance.
The initial motivation for fiddling, incidentally, was to see if I could widen the main post column, so that I can post slightly larger screenshots; 400px wide is kinda small. Also, the darker background makes for easier viewing of screenshots (they get a little drowned in all that white).
Edit now I'm home using my colour-accurate monitor: OK so it wasn't actually pale blue at all, more like lilac.