Vostok is for those who don't want attention to be distracted from content. Colors and typography have been carefully chosen to achieve maximum legibility with minimum eye fatigue. Also, code has been written with extreme care for web standards and accessibility.

Download the Vostok Theme
For Wordpress 2.6.x and better
Screenshoot of Vostok Theme

How to install: upload vostok and vostok-white into your wp-content/themes directory, then activate your desired flavor (light or dark) in the Appearance section.

Tumblr version!: Ricardo Fernández has coded a Black version for Tumblr and a White version for Tumblr. If you use the Disqus widget for comments make sure to grab disqus.css or disqus_white.css.