# IrisRegionSpot > A spot config ```json { "scale": 1, "type": "LAND", "shuffle": 128, "rarity": 1 } ``` ## biome > The biome to be placed ## type > Where this spot overrides. Land sea or shore ## scale > The scale of splotches ## rarity > Rarity is how often this splotch appears. higher = less often ## shuffle > The shuffle or how natural the splotch looks like (anti-polygon)