I wanted to make some customizations to the "Seven" administration theme, so I started by installing the "Blossom" sub theme of Seven found here: http://drupal.org/project/blossom-admin .
This worked fine. So then I copied /sites/all/themes/blossom-admin and named it /sites/all/themes/myadmin
In the .info file for myamin, I changed
name = Blossom description = Drupal Gardens administration theme.
name = myadmin destription = my description of this theme
And just to be safe, I also renamed any files that had the "blossom" name to "myadmin" in both the .info file and to the actual files themselves. (Like renamed blossom.css to myadmin.css)
Now when I go to the Drupal admin and select myadmin as the administration theme, it works, but includes my main navigation and a footer region content at the top of the theme. Does anyone know why this would happen to a straight copy of the blossom theme which worked fine?