Test if template files (.tpl.php) are used by theme I've inherited a custom Drupal 7 theme with many template files. I'm sure lots of them aren't actually used by the website, and were part of the testing process.

Is there a method to list which .tpl.php files are being used in the website, or for a particular page?
Just print the theme hook suggestion variable in any preprocess function in template.php

print_r($variables['theme_hook_suggestions']);


If you use the Devel module then 

dpm($variables['theme_hook_suggestions']);