This document provides steps for creating a subtheme for the Bartik theme in Drupal 7. It involves: 1) Creating folders and files for the new subtheme 2) Configuring the .info file to set theme name, description, base theme, and regions 3) Creating blank CSS and image files 4) Copying color files from Bartik to enable the color module in the new subtheme The final step is enabling the new subtheme from the administration page.