Themer Toggle Module Requirements: Drupal 6.x (http://drupal.org/project/drupal) Devel (tested with 6.x-1.20) (http://drupal.org/project/devel) Theme Developer (tested with 6.x-1.x-dev) (http://drupal.org/project/devel_themer) Installation: Copy the directory 'themer_toggle' into your drupal modules directory ('/sites/all/module', or '/sites/default/modules/). Install like any other module via the module install page (http://example.com/admin/build/modules) Description: This Drupal 6.x module allows you to toggle the state of the Theme Developer Module via a URL. This was built in to Devel when Theme Developer was packaged with it. How I use it: I created a handy bookmarklet: javascript:var%20devel='/devel/devel_themer';%20var%20base=location.protocol+'//'+location.host;if(location.pathname.substr(1)){var%20extras%20=%20'?destination='+location.pathname.substr(1)}else{var%20extras=''};location=base+devel+extras; Hope somebody finds this useful