Theme Doctor is the must have Magento tool for troubleshooting and creating your Magento Themes and front end designs. Theme Doctor allows you to
1. View every block and template that was used on the page
2. Quickly search through the page’s rendered source to find specific blocks and templates
3. Review Magento Layout Handle and Layout XML on a per page request
4. Preview Email Templates
5. Search for specific email templates
6. One Click creation of class overrides, class rewrites, and custom templates
7. Support for Enterprise and Professional Editions
If you’re frustrated with Magento, Theme Doctor’s the tool you’ve been looking for. Don’t believe it? Checkout the screencasts and you’ll be a believer.