This is a theme that emulates the look of br.gnome.org.
It requires the ThemeEnginePlugin.
If you have any issues, create a new ticket.
Download the zipped source from here.
To enable, add the following to your trac.ini file:
[components] gnomebrtheme.* = enabled
To use, add the following to your trac.ini file::
[theme] theme = GnomeBR