public function __construct($post_id = 0)
 {
     parent::__construct($post_id);
     $this->caption_positions = array('below' => __('Below Image', 'maxgalleria'), 'bottom' => __('Bottom of Image', 'maxgalleria'));
     $this->lightbox_sizes = array('full' => __('Full', 'maxgalleria'), 'custom' => __('Custom', 'maxgalleria'));
     $this->skins = array('no-border' => __('No Border', 'maxgalleria'), 'picture-frame' => __('Picture Frame', 'maxgalleria'), 'portal' => __('Portal', 'maxgalleria'), 'portal-dark' => __('Portal Dark', 'maxgalleria'), 'standard' => __('Standard', 'maxgalleria'), 'standard-dark' => __('Standard Dark', 'maxgalleria'), 'tightness' => __('Tightness', 'maxgalleria'), 'tightness-dark' => __('Tightness Dark', 'maxgalleria'));
     $this->thumb_clicks = array('lightbox' => __('Lightbox Image', 'maxgalleria'), 'attachment_image_page' => __('Image Page', 'maxgalleria'), 'attachment_image_link' => __('Image Link', 'maxgalleria'), 'attachment_image_source' => __('Original Image', 'maxgalleria'));
     $this->thumb_columns = array(1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 10);
     $this->thumb_shapes = array('landscape' => __('Landscape', 'maxgalleria'), 'portrait' => __('Portrait', 'maxgalleria'), 'square' => __('Square', 'maxgalleria'));
 }