#Biomes & Structures

In order to not destroy any trees in custom biomes, Separated Leaves does not separate leaves in unknown biomes. Separated Leaves only works in biomes using a namespace that have registered at least one rule. This means that if a mod only adds biomes with existing trees, the biomes won't get recognized by Separated Leaves as there are no rules regarding custom trees. To fix this, add an empty rule.

{
  "leaves": [],
  "logs": []
}

This way, all leaves in custom biomes of the namespace will work correctly.

If you wish to blacklist a biome, you can add it to the tag data/separated_leaves/tags/worldgen/biome/allow_mismatched_leaves.json.