A clean Trac theme which also adds styling to the Tags and Blog plugins.
If you have any issues, create a new ticket.
Download the zipped source from here.
All themes also need the ThemeEnginePlugin.
To enable, add the following to your trac.ini file:
[components] mentalaxistheme.* = enabled
To use, add the following to your trac.ini file:
[theme] theme = Mentalaxis