Branding, Screen Sets, XSL/CSS and TranslationsCustomizing and Branding the UI of OTM / G-Log for your site, using Custom Screen Sets, Menu Managers, XSL/CSS customizations, Translations and more.
The BLUEPRINT domain allows you to make all of your changes to Menu Managers, Screen Sets and User Menus in one location and then share these among multiple domains or to copy them from server to server (or environment to environment). However, there still seem to be several issues with the functionality and documentation. Here's a more recent post that may help: