Toolbar

// Add Toolbar Menus
function options_toolbar() {
	global $wp_admin_bar;

	$args = array(
		'id'     => 'clients',
		'parent' => '1',
		'title'  => __( 'Clients', 'goeiezaak' ),
		'meta'   => array(
			'html'     => 'ewfewf',
		),
	);
	$wp_admin_bar->add_menu( $args );

}
add_action( 'wp_before_admin_bar_render', 'options_toolbar', 999 );