Lo and behold, a new theme - A Block by couzinhub.
Functional, unassuming and good looking were the things I was looking for (and in that order) and this theme provides them all by the bucketload.
A little bit of History. Again.
When I first started this site, it had a basic theme - a slight modification to the default theme for pmWiki. It was unassuming and did its job.
Then I moved the site to Drupal. With drupal came a multitude of choices. Good choices, but at times a little overpowering.