Farewell, 3 year old dreams of a volcano level!  Not too knowledgeable about tilesets and such, but this could hopefully be a possibility in the future someday. I remember brainstorming ideas in 2010 and this was one thought that came to my mind, how cool and unique it would be.
If not, its probably for the better. I'm not in a position to accurately weigh pros and cons... |
I'm sure eventually we might come to the point where we need lava-themed stuff, but the default lava wouldn't suffice. Also the goal is to have exterior and interior tiles separated as much as possible.