Gtk.NumerableIcon.prototype.get_background_gicon

function get_background_gicon():Gio.Icon {
    // Gjs wrapper for gtk_numerable_icon_get_background_gicon()
}

Returns the Gio.Icon that was set as the base background image, or null if there's none. The caller of this function does not own a reference to the returned Gio.Icon.

Since 3.0