@Arctus98 As long as you know, it’s all good.
Looking around in the stonehearth mod, it looks like you’ll want to go into services/server/world_generation/ to get the code that builds the world out. Landscaper.luac looks like the specific file that handles all the trees, bushes and water features.
I’m not sure where else you’d have to poke around to build out a whole new tree type. Maybe look at @Relyss’s candyland mod for some hints about how things work there?