Hi JohnWasser. I changed the int to unsigned char and that made the display work better. The corner led is now working.
I tried your "neighboring cells" code in place of the one I had but only one row blinked a bit. So it must be missing something, but I appreciated your time in writing it.
If there are any more recommendations to make the code better I'd be happy to hear them. This will be a walling hanging so if you have an idea to add something that is cool to look at and runs autonomously I'd love to hear about it.
Thanks
Matt