This stuff is pretty damn cool, absorbs like 99.9% light and made with carbon nanotubes. They made it into a sprayable paint, I wonder if 3M and friends have been in talks with them to one day bring it to the vinyl world. I could only imagine the cost though.
https://www.surreynanosystems.com/vantablack
https://www.surreynanosystems.com/vantablack