[jboss-as7-dev] Management Console, Look & Feel
To give you an idea where this is going:
http://community.jboss.org/wiki/ManagementConsoleScreens
It looks pretty much like JON: styles, widgets and top most layout.
Although technically it's build a little different:
http://community.jboss.org/wiki/ManagentConsolePatterns
Ike