[themes] Drupal features page needs better description of theme capabilities

http://drupal.org/features Templating - Drupal's theme system separates content from presentation allowing you to control the look and feel of your Drupal site. Templates are created from standard HTML and PHP coding meaning that you don't have to learn a proprietary templating language. Detailed information links to --> How to write themable modules: http://drupal.org/node/306 Blocks Regions Variables available in theme template Additonal variables in theme template Customizable templates Customizing themes for node types, terms, sections, paths, and front page Theme functions What else should we describe? Kieran