Here are my suggestions that could improve the worldgen:
- Mangrove, waterlogged, lily ponds could be merged together, containing plants and mobs from three biomes together.
- Knobbly trees could replace mangrove trees.
- The three waterlogged could spawn in Shipwrecked island archipel.
- Balphin palaces should only spawn in coral reefs like it is in SW.
- Boat fragments and bull kelps could spawn in ship graveyards.
- Bull kelps could spawn in coral reefs.
- Wobster dens could spawn in coral reefs.
- There is currently only one meadow and tidal marsh, more should generate.
- Palm trees could replace birchnut trees in the oasis.
- Driftwoods, beached bull kelps, sea bones, anenemies could spawn in beach.
- Limpet rocks, crates, seashells, crab dens could spawn in rocky beach, and potentially pearl island and moon quay island.
- Berry bushes should spawn in meadows.
- Juicy berry bushes could spawn in jungles and meadows.
- Spiky trees and spiky bushes could spawn in tidal marshes.
- Poison holes could spawn in marshes.
- Tidal pools could occasionally spawn in jungles and meadows like ponds in forests and plains.
- Ponds, tidal pools, knobbly trees, mangrove trees, could spawn dartfrogs the day, and mosquitoes the night, like lily pads.
- Poison mosquitoes could rarely spawn from marsh ponds, tidal pools, knobbly trees, and lily pads.
- Mosquitoes could spawn from flooded tiles like poison mosquitoes.
- Lava pools could spawn in the volcano.
- Volcano should generate in cave instead of surface.