Drupal Owl Carousel using theme function or render array

drupal_owl_carousel.php

<?php

function owl_menu_callback() {
  $owlcarousel = array(
    '#theme' => 'owlcarousel',
    '#items' => array(
      array('row' => '<img src="http://lorempixel.com/350/200" />'), // You can add any images/HTML here
      array('row' => '<img src="http://lorempixel.com/351/201" />'),
      array('row' => '<img src="http://lorempixel.com/352/202" />'),
      array('row' => '<img src="http://lorempixel.com/353/203" />'),
      array('row' => '<img src="http://lorempixel.com/354/204" />'),
      array('row' => '<img src="http://lorempixel.com/355/205" />'),
    ),
    '#settings' => array(
      'grouping' => array(),
      'uses_fields' => FALSE,
      'id' => 'owlcarousel-gt', // Any ID you want to add
      'instance' => 'owlcarousel_settings_default', // Settings name that you created in settings
      'attributes' => array(
        'class' => array(
          0 => 'owlcarousel-class' // Any class you want to add
        ),
      ),
    ),
  );
  return $owlcarousel;
}