I’m perfectly okay with that. How do I apply CC-BY-SA to my work?
Please tell more. I recently picked up something about the so-called ASCII fallback feature tampering with transparency in some tiles, is this related?[/quote]
You can include an express statement in a text file packed with the code, or just submit it for inclusion in mainline. Everything included in DDA inherits CC-BY-SA.
I’m not familiar with the ASCII fallback code, but the overlay code is something different. I recommend supporting both if you can, but I’m not familiar with tileset coding and suspect that it’s nontrivial.