On the particles 101 doc page there's an embedded PG https://www.babylonjs-playground.com/#L9QWZB#0 which uses a nice steam/smoke sprite sheet texture from PatrickRyanMS's github repo.
I was just wanting to know if it's OK to use this texture. I couldn't find any contact details on Patrick's github profile to ask him and not sure if he's active in this forum. Looks like he works for MS so maybe someone here knows him @Deltakosh @davrous?