The material to use during the growing phase. This material is eventually cloned to inject 'Growing Texture List'.
MATERIALasset IDThe material to use during the harvested phase (if any, otherwise 'Growing Material' is also used during the harvested phase). This material is eventually cloned to inject 'Harvesting Texture List'.
MATERIALasset IDnilBIOME_LAYERasset IDnil