/**
 * Writes the common 'new' icon for the button bar.
 *
 * @param   string  $task  The task name of this button.
 * @param   string  $text  The text of this button.
 *
 * @return  StandardButton
 *
 * @since   4.0.0
 */
public function addNew(string $task, string $text = 'JTOOLBAR_NEW') : StandardButton
{
    return $this->standardButton('new', $text)->task($task);
}