<signal name="delete-event" handler="gtk_widget_hide_on_delete" swapped="no"/>
<signal name="response" handler="gtk_widget_hide" object="prefs_window" swapped="yes"/>
<child internal-child="vbox">
<signal name="delete-event" handler="gtk_widget_hide_on_delete" swapped="no"/>
<signal name="response" handler="gtk_widget_hide" object="prefs_window" swapped="yes"/>
<child internal-child="vbox">