Maintainers for gtk+2.0 are Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>.
You may want to refer to the following individual bug pages: gir1.2-gtk-2.0, gtk2-engines-pixbuf, gtk2.0-examples, libgail-common, libgail-dev, libgail-doc, libgail18, libgail18t64, libgtk2.0-0, libgtk2.0-0t64, libgtk2.0-bin, libgtk2.0-common, libgtk2.0-dev, libgtk2.0-doc.
You might like to refer to the gtk+2.0 package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.