public static function GetEmbedSize() {
      $Sizes = array(
         'tiny' => array( 400, 225),
         'small'=> array( 560, 340),
         'normal'=>array( 640, 385),
         'big'  => array( 853, 505),
         'huge' => array(1280, 745));
      $Size = Gdn::Config('Garden.Format.EmbedSize', 'normal');
      
      // We allow custom sizes <Width>x<Height>
      if (!isset($Sizes[$Size])) {
         if (strpos($Size, 'x')) {
            list($Width, $Height) = explode('x', $Size);
            $Width = intval($Width);
            $Height = intval($Height);
            
            // Dimensions are too small, or 0
            if ($Width<30 or $Height<30) {
               $Size = 'normal';
            }
         } else {
            $Size = 'normal';
         }
      }
      if (isset($Sizes[$Size])) {
         list($Width, $Height) = $Sizes[$Size];
      }
      return array($Width, $Height);
   }