Since there is not filtering by extension, you can always go to Custom Permissions and set the default file permissions (second combo box in the top box) to 0755, then save the default settings, go back to the Control Panel page and click on Fix Permissions. This will give all files 0755 permissions, but it's not worse (or, more correctly, it's not more insecure) than having PHP files set to 0755, as the only "executable" files on your server are the PHP files.
Nicholas K. Dionysopoulos
Lead Developer and Director
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