Administration theme

Drupal allows you to define a different theme for administration pages (Administer -> Site configuration -> Administration theme). By default this only applies to pages with a path starting with 'admin' and content editing pages.

The Administration theme module allows you to use this theme on more pages like :
- batch processing pages
- devel node load and render pages
- coder code review pages
- pages you define yourself in the provided textarea

Some of these options will only be available to you if they apply to your installation, i.e. you have the module installed which generates these pages.

Use default theme (not administration theme) for anonymous users on admin/*

This is possible using this module. See issue http://drupal.org/node/372156 for more details.

Module maintainers

You can add extra pages by implementing hook_admin_theme_options in a module.
For Drupal 7 the hooks are hook_admin_theme_info and hook_admin_theme_check