code: def gtk_reload():
      
      events = gtk.gdk.Event(gtk.gdk.CLIENT_EVENT)
      data = gtk.gdk.atom_intern("_GTK_READ_RCFILES", False)
      events.data_format = 8
      events.send_event = True
      events.message_type = data
      events.send_clientmessage_toall()
docs: Reload GTK2 themes.