The player is getting info about mushroom growth percentage, but mushroom spread is not actually controlled at right now. So it grows like in vanilla, the player is getting wrong information.
Use BlockSpreadEvent to control mushroom growth by percentage chance.
The player is getting info about mushroom growth percentage, but mushroom spread is not actually controlled at right now. So it grows like in vanilla, the player is getting wrong information.
Use
BlockSpreadEventto control mushroom growth by percentage chance.