When making a GtkCalendar insensitive, the entire calendar gets grayed out except for the little arrows to move back and forward for month and year. It seems like those widgets should get grayed out too. Is this a theme problem or a gtk2 problem? I'm seeing this on Milan with the wonderland theme.
Filed in gnome bugzilla as http://bugzilla.gnome.org/show_bug.cgi?id=97376