Add new Elementor Widget Category

gistfile1.txt

function add_elementor_widget_categories() {

	\Elementor\Plugin::instance()->elements_manager->add_category(
		'theme-elements',
		[
			'title' => __( 'Theme Elements', 'text-domain' ),
			'icon' => 'fa fa-plug',
		],
		2 // position
	);
	\Elementor\Plugin::instance()->elements_manager->add_category(
		'other-elements',
		[
			'title' => __( 'Other Elements', 'text-domain' ),
			'icon' => 'fa fa-plug',
		],
		3 // position
	);

}
add_action( 'elementor/init', 'add_elementor_widget_categories' );