Blue stork

From Joomla! Documentation

Blue Stork is a Joomla! administrator (back end) template included with the distribution of the Joomla! CMS starting with version 1.6. It is designed as a basic administrator using the core layouts without any overrides.

Working with Blue Stork

Modifying Core Layouts

You can modify the basic or core layouts of the administrator by adding layout overrides to the html folder in the Blue Stork template.