Sets whether the menu item appears justified at the right side of a menu bar.
If you insist on using it, use gtk_widget_set_hexpand and gtk_widget_set_halign.
This was traditionally done for “Help” menu items, but is now considered a bad idea. (If the widget layout is reversed for a right-to-left language like Hebrew or Arabic, right-justified-menu-items appear at the left.)
| this |
a MenuItem. |
| right_justified |
if true the menu item will appear at the far right if added to a menu bar |