This Gallerytemplate uses the PhotoSwipe script version 4.1.1 by Code Computerlove and was 
contributed by Rolf Tjassens.

NOTE: The smartytemplate makes use of a method described at 
www.cmscanbesimple.org/blog/getting-the-image-dimensions-in-smarty
Because of this you need to add this line to the config.php file: 

$config['permissive_smarty'] = 1;

Documentation can be found at photoswipe.com

Files that come with PhotoSwipe are stored in modules/Gallery/templates/photoswipe/

PhotoSwipe is free to use for personal and commercial projects. It falls under the MIT license.