public function add_custom_item( $title, $link = '', $priority = 1000 ) {
		$custom_item = Carbon_Breadcrumb_Item::factory( 'custom', $priority );
		$custom_item->set_title( $title );
		$custom_item->set_link( $link );
		$custom_item->setup();
		$this->add_item( $custom_item );
	}