Info for adding metadata: https://github.com/LambdAurora/LambdaBetterGrass/blob/1.19/documentation/METADATA_GRASS_FORMAT.md

Blocks that could use grass-like connections:

• Humus
• Fluvisol
• Vertisol
• Cryosol
• Rooted Grass Block

I am open to someone making a pull-request for this but I dont have the time to implement the compat myself.

Working on it. Expect a pull request tomorrow.

@AkashiiKun Was this ever implemented? I made a similar PR to BYG here: Potion-Studios/BYG#910