editor: SellableUnitEditor
GtkDialog(main_dialog.toplevel): title='Add Product Unit', hidden
  GtkVBox(main_dialog._main_vbox):
    GtkVBox(main_dialog.vbox, expand=True, fill=True):
      GtkEventBox(main_dialog.header):
      GtkEventBox(main_dialog.main, expand=True, fill=True, padding=6): slave SellableUnitEditor is attached
        GtkAlignment(toplevel):
          GtkTable(table1):
            GtkLabel(description_lbl): 'Description:'
            ProxyEntry(description): ''
            ProxyCheckButton(allow_fraction): 'Allow Fractions (e.g 0.5Kg, 0.75mL)', active
      GtkHBox(fill=True):
        GtkEventBox(main_dialog.extra_holder, expand=True, fill=True, padding=6):
        GtkEventBox(main_dialog.print_holder, expand=True, fill=True):
        GtkEventBox(main_dialog.notice, fill=True):
        GtkEventBox(main_dialog.details_holder, padding=6, pack-end):
    GtkHButtonBox(fill=True, pack-end):
      GtkButton(main_dialog.cancel_button, expand=True, fill=True, padding=6): 'gtk-cancel'
      GtkButton(main_dialog.ok_button, expand=True, fill=True, padding=6): 'gtk-ok'
