如何更改Drupal中的MENU_LOCAL_TASK选项卡菜单

function mymodule_menu() {
  $items = array();

  $items['my_tab'] = array(
    'title' => 'My Tab',
    'description' => 'My custom tab for the menu',
    'page callback' => 'my_tab_callback',
    'access arguments' => array('access content'),
    'type' => MENU_LOCAL_TASK,
    'weight' => 10,
  );

  return $items;
}

function my_tab_callback() {
  $output = array(
    '#theme' => 'my_tab_theme',
  );

  return $output;
}

<div>
  <h2>My Tab</h2>
  <p>This is the content for my custom tab.</p>
</div>