public static function init(&$main_object, &$wrapper, $style)
 {
     self::$main_object = $main_object;
     self::$wrapper = $wrapper;
     if ($style == 2) {
         self::$style_settings_collapsible_content_style = 'padding-left: 15px';
         self::$img_max_height = 136;
         self::$style_group_collapsible_string = "padding: 3px 3px; background-color: #2b2a2b; border-radius: 8px; margin-bottom: 8px;";
         self::$style_group_collapsible_array = array('padding' => '3px 3px', 'background-color' => '#2b2a2b', 'margin-bottom' => '8px', 'border-radius' => '8px');
     }
 }