Tropical Island biome. Island villages.
Island villagers. Palm trees. Coconuts. Bananas.
Banana plantains in the island villages.
Tropical wandering traders that sell tropical stuff.
Firework workbench. Different firework types.
Sand color dye. Collectable shells. Papayas. Mangos. Sunglasses crafted with tinted glass.
Evil tiki imps similar to vexes in the island's jungle.
New music discs. Geckos. Hostile insects. Pizza.
Beach umbrellas. Pet stores in the villages.
Monkeys that steal stuff from your chest.
So pretty much tropicraft with some extra things in it?