Theme guide (Drupal 6)

Welcome to the theming handbook. The following pages will cover the core ideas behind theming as it applies to Drupal 6 and beyond. Theming instructions for versions 5 and below are still available. For an overview of the changes see the upgrade guide.

This handbook will illustrate some of the differences from previous versions where appropriate. It is presented from a themers perspective. If you are developing a module that outputs presentation data, then please read the theme section in the module developers guide. All output should be themable.

Note to documentation contributors. Please don't add HOWTO sections and instructions related to contributed modules or themes. Keep the information here related to core and only link to their pages instead when it makes sense to do so.