minetest.register_alias("mapgen_snowblock", "default:snowblock")
minetest.register_alias("mapgen_snow", "default:snow")
minetest.register_alias("mapgen_ice", "default:ice")
+minetest.register_alias("mapgen_sandstone", "default:sandstone")
minetest.register_alias("mapgen_tree", "default:tree")
minetest.register_alias("mapgen_leaves", "default:leaves")