once biome config gets merged we should go back though the vanilla key for each biome and choose one that actually suits the biome (for spawning and structures, etc) and modify any values that need to be changed on the terra side
defb14713a45e5e0dd72d6f422dad141ec8105e3 replaces vanilla keys with an environment which primarily determines biome colors, other behaviour such as mob spawns will still need to be done
Quotes from @duplexsystem
Referenced PR - https://github.com/PolyhedralDev/Terra/pull/330