Blackboard - JSHack
The building block is available from Oscelot, project link: http://projects.oscelot.org/gf/project/jshack/.
A simple 30second job can be used to modify the banner colour:
Modifying the colour of our banner from the theme green, to a blue.
Shameless plug, if you're interested in Blackboard, JSHack, or 'How-To' blog articles: All the Ducks.