Drupal 6 Theming using the Zen Theme

This document discusses theming in Drupal using the Zen theme. It covers basic theming elements like the .info file, template files, template.php, and CSS files. It also provides an overview of how to set up a new theme in Drupal based on Zen, including renaming files and making changes to reference the new theme name. Additional topics include useful theming tools, a four stage process for theming, advantages of the Zen theme, and links for additional documentation.