related to #1657 replaced is_svg by file and path ext

picture.php

@@ -508,7 +508,8 @@ while ($row = pwg_db_fetch_assoc($result))
   $row['derivatives'] = DerivativeImage::get_all($row['src_image']);
 
   $extTab = explode('.',$row['path']);
-  $row['is_svg'] = (strtoupper(end($extTab)) == 'SVG');
+  $row['path_ext'] = strtolower(get_extension($row['path']));
+  $row['file_ext'] = strtolower(get_extension($row['file']));
 
   if ($i=='current')
   {