[Trisquel-users] Re : Need help for changing filetype icon-image & pathbar in nautilus

[magicbanana]

Wouldn't you rather change the whole theme? This is documented in many places  
on the Web. That said, I am not certain it would perfectly work if using the  
GNOME Classic fallback (Trisquel Brigantia's default)...

The themes are in /usr/share/themes. To edit a theme you probably want to  
copy it first to ~/.themes so that it does not affect other users and would  
not be overridden by an update. If you want new users to have the modified  
theme you would then copy ~/.themes to /etc/skel/.themes