Do you need to insert an image or a class here? My quick and dirty approach would have been trying to use css attribute selectors, but in fact the system makes it even easier than that since each of the tabs has an ID. Therefore you can style each one individually anyway in the CSS file without editing any of the php, such as…
add_tabbed_navigation_item(new TabbedNavigationItem( PROJECT_TAB_OVERVIEW, lang('overview'), get_url('project') ));But i dont know how. Maybe inserting an image directly?
Thanks,