Sorry for the late response.
With regards to commercial licensing this should fall under Creative Commons Attribution 4.0 so commercial use is fine. I do ask that nobody use my stuff in blockchain related projects, but that's not legally binding just a professional courtesy.
With regards to animation data, I have good news. I took your request as a chance to reorganize some things and went ahead and released it as version 1.15 since it was simpler to reorganize things if I was going to release an animation key
Everything you asked about should be in a .txt file in the 1.15 folder,
1.15 includes
- Animation notes
- A more intuitive sprite sheet design including:
- Idle (South only)
- Walk
- Hurt
- Shrink / Die
- Grow / Spawn
- normal maps
- classic palettes like gameboy and NES,
- Aseprite .json format metadata for easy importing
- An advanced compressed layout sprite sheet which requires metadata for practical use but saves space for mobile / browser games.
That should take care of your concerns.
Have a good day, and consider donating if you're able, so far This is a pretty popular asset yet I've only been made $0.007 per download.