When I use A4_48x48, I don't understand how to make the top of the walls connect seamlessly. There are only 6 tiles for the top of the walls and I wasn't able to make it look like you did in your example. Would you know how to solve this problem?
I love your work and thank you for making it public! I'm hoping to fix this issue so I can use it in my game and I'll be sure to credit you!