gtk-menu-item, gtk-bin, gtk-container, gtk-widget, gtk-buildable, gtk-activatable, g-object, common-lisp:standard-object, common-lisp:t

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The gtk-separator-menu-item widget is a separator used to group items within a menu. It displays a horizontal line with a shadow to make it appear sunken into the interface. The gtk-separator-menu-item has a single CSS node with name separator.