How do I create a blueprint-exclusive biome?

[SheerYin]

Expected behavior

Set the blueprint's biome instead of using it uniformly
default-biome: PLAINS

Observed/Actual behavior

No settings were found to set the corresponding blueprint biome

Steps/models to reproduce

Create a new blueprint, then select the new blueprint
Use "/is create" to select and create new islands
The biome is still PLAINS

BentoBox version

[13:41:56 INFO]: Running PURPUR Invalid.
[13:41:56 INFO]: BentoBox version: 1.20.1
[13:41:56 INFO]: Database: JSON
[13:41:56 INFO]: Loaded Game Worlds:
[13:41:56 INFO]: skyblock_world (skyblock): Overworld, Nether, The End
[13:41:56 INFO]: Loaded Addons:
[13:41:56 INFO]: Bank 1.4.0 (ENABLED)
[13:41:56 INFO]: Biomes 2.0.0 (ENABLED)
[13:41:56 INFO]: Border 3.2.0 (DISABLED)
[13:41:56 INFO]: BSkyBlock 1.15.2 (ENABLED)
[13:41:56 INFO]: CauldronWitchery 1.6.0 (ENABLED)
[13:41:56 INFO]: Challenges 1.0.0 (ENABLED)
[13:41:56 INFO]: Chat 1.1.4 (ENABLED)
[13:41:56 INFO]: DimensionalTrees 1.6.0 (ENABLED)
[13:41:56 INFO]: ExtraMobs 1.12 (ENABLED)
[13:41:56 INFO]: Level 2.9.0 (ENABLED)
[13:41:56 INFO]: Likes 2.3.0 (ENABLED)
[13:41:56 INFO]: Limits 1.19.0 (ENABLED)
[13:41:56 INFO]: MagicCobblestoneGenerator 2.4.0 (ENABLED)
[13:41:56 INFO]: TwerkingForTrees 1.4.3 (ENABLED)
[13:41:56 INFO]: Visit 1.4.0 (ENABLED)
[13:41:56 INFO]: Warps 1.12.0 (ENABLED)

Plugin list

BatchCommand, BentoBox, ChatControlRed, CMI, CMILib, DeluxeMenus, FastAsyncWorldEdit (WorldEdit), InteractiveChat, ItemJoin, PhantomWorlds, PlaceholderAPI, PlugMan, ProtocolLib, ShopChest, spark, TAB-Bridge, Vault, ViaBackwards, ViaVersion, WorldEditSelectionVisualizer, WorldGuard

Other

No response