I downgraded libgtk2.0 and everything is back to normal. The following list are interdependent, so I downgraded them all:
libgtk2.0-0 libgtk2.0-bin libgtk2.0-common libgtk2.0-dev libgtk2.0-doc libgail18 libgail-common libgail-dev gtk2-engines-pixbuf
I downgraded libgtk2.0 and everything is back to normal. The following list are interdependent, so I downgraded them all:
libgtk2.0-0
libgtk2.0-bin
libgtk2.0-common
libgtk2.0-dev
libgtk2.0-doc
libgail18
libgail-common
libgail-dev
gtk2-engines-pixbuf