Instructions
- Create a custom block called GT Simple Gallery with the same machine name.
 - Add an unlimited image field, Don't reuse. Set max size around 1500*1500. Called GT Simple Gallery Image with same machine name
 - Install and hook up ColorBox if wanted. Don't forget the ColorBox Library
 - This was only meant for a dozen or so images.
 
- Add .single-image on the block level for 1 single image at full width