[Zope] The new stylesheet used in the management interface

I'm wondering if there's a document describing the use of the elements from 'manage_page_style.css' for unifying the management interface. Maybe it will be a good thing to release two DTML methods/documents to simulate the 'manage_page_header' and 'manage_page_footer' for backward compatibility with previous builds of Zope while moving to the new layout.