Im trying to add biomes from the Project Vibrant Journey's mod
I added the biome in S:externalBiomeNames=pvj:prairie and wrote the ID in
externalbiomeids {
I:"pvj:prairie ID"=-1
wich in this case is 40, but every time i restart the game it resets hitself back to -1
Anyway for the biomes ID's i used a mod called TellMe