[
  {
    "type": "overmap_terrain",
    "abstract": "generic_kelp_forest",
    "copy-from": "generic_ocean",
    "name": "kelp forest",
    "sym": "~",
    "color": "green",
    "extend": { "flags": [ "REQUIRES_PREDECESSOR" ] }
  },
  {
    "type": "overmap_terrain",
    "id": "kelp_forest_core",
    "copy-from": "generic_kelp_forest"
  },
  {
    "type": "overmap_terrain",
    "id": "kelp_forest_end",
    "copy-from": "generic_kelp_forest",
    "delete": { "flags": [ "NO_ROTATE" ] }
  }
]
