Question: Why arent leaves acting like normal leaves ?
With this i mean, plum for example when world generated the fruit leave block does not have better foliage skin on it while planting it and bonemeal it it does have it.
Besides this i use a better leave addon that makes the cube a roof like block this works for almost all modded leaves but all your leaves remain cubes. This makes me think your leaves are not regged as leaves should be ?

Suggestion: Have the option to make blacklist a whitelist.
I dont understand why dimensions are whitelist and biomes are blacklist.
To me it sounds more logic to add a tree to a biome rather then remove it from one besides the fact that this option should also overrule the default setting.

Thnx in advance.

We are generating our leaf models automatically while the game runs and don't use JSON files because they have a second laver for the fruits that the default cube leaves don't have.