Conflict with Overlay

This module handles the administration theme, not the overlay.

To me it makes sense for this module to co-operate with overlay. It is not a matter of this module not providing a feature, it is a matter of this module breaking a feature. In the screenshot below notice the space above the admin menu, and the lack of overlay on a page that should appear in the overlay.

#1169228: Use Drupal's new hook_admin_paths() should solve this issue.

@Mamoun - in the mean time you can implement the hook in your own custom module. For example here is the code I am using.

<?php
/**
 * Implementation of hook_admin_paths().
 */
function gallery_artwork_admin_paths() {
  $paths = array(
    'node/*/artwork/*' => TRUE, 
  );
  return $paths;  
}
?>

To answer Mamoun's issue, use this module together with overlay paths module. Works like a charm. :)