Even though I read most of my blogs in an RSS reader and never even see the page, I updated my own with a new theme
No need to like it! Some requirements were: em units for fonts (for good scalability), liquid content area and the words are the most important thing. That’s why they’re the biggest thing on the page. Nothing should disturb the reader while reading the article. Even the post metadata (author etc.) is nearly invisible until hovered over.
Also, slightly new color theme. You don’t have to like that either, although that’s easier to change and I’m happy about color recommendations!
As usual, grab the source and fiddle with it if you like. URL is in the page source.