Spirit Mod 1.3.2 served as a Halloween update, adding a trick or treat system, a few Halloween-themed weapons, a new donator item and new candy buffs.
Added trick or treating! Talk to an NPC during the night during halloween, and they'll give you a piece of candy, with atlesat 2 possible lines of new dialogue. Candy is also obtainable from goodie bags, or the new Candy Bowl, sold by the Merchant during Halloween.
Added the Candy Bag. If it's in your inventory, it will hold Candy. Take a piece by right clicking.
Added Candy. There are 9 types: Apple, Mystery Candy, Lollipop, Candy, Golden Candy, Chocolate Bar, Mana Candy, Health Candy and Taffy. All of these have their own special buffs.
Added Spooky Grass, which is sold by the Dryad post Moon Lord during halloween. It is purely decorational, but grows spooky trees to drop Spooky Wood.