Minecraft wiki entry for Unused_textures, associated text: In an unknown build of Bedrock Edition 1.16.0,[more information needed] a "soul lava" particle was added to particles.png. It can be seen that this particle is to the "lava" particle texture what the soul flame particle is to the ordinary "flame" particle. While likely added for consistency, it appears completely unused and whether it was actually planned for use at all is unknown.