// material types and specific block names that can be used to mark a location as forbidden for building.
// blocks with tile entities will automatically be treated as forbidden.
forbidden_materials=iron,anvil,sponge,glass,circuits,redstone_light,ice,packed_ice,dragon_egg,portal,water,lava,tnt
forbidden_blocks=minecraft:brick_block,millenaire:earth_deco,millenaire:stone_deco,millenaire:wood_deco,minecraft:planks

// material types and specific block names that can be considered ground to build on (if not forbidden), or for checking reachability.
ground_materials=grass,ground,rock,sand,crafted_snow,clay
ground_blocks=

// material types and specific block names that are dangerous.
danger_materials=fire,lava,tnt,cactus
danger_blocks=

// material types and specific block names that are treated like water.
water_materials=water
water_blocks=

// material types and specific block names that can be replaced with paths.
path_replaceable_materials=grass,ground,sand,clay
path_replaceable_blocks=minecraft:hardened_clay