Club Drupal

      '#default_value' => isset($item['alt']) ? $item['alt'] : '',

      '#description' => t('This text will be used by screen readers, search engines, or when the image cannot be loaded.<br />

<em>(Notice: this field is not fetched on -all- formatters yet. For example: If the Rendered file formatter will be used, this field is not available at the moment.)</em>'),

      '#weight' => 1,

    );

  }