In the addDust function in the OptionsPositionManager.sol file, if token0 or token1 has more than 20 decimals, the transaction will always revert.
The function executes some code to scale the tokens value:
But since they are doing 20 - token0Decimals and 20 - token1Decimals, if one of those tokens has more than 20 decimals, the subtraction will underflow causing the entire transaction to revert, making it impossible to run this function for that token pair.
The token pairs having at least one token with more than 20 decimals wont be able to be used in the addDust execution since those parameters will always cause the function to revert.
Since it is already doing some logic to support different token decimals, a conditional to check if the token decimals are higher than 20 could be implemented, and then some logic to support tokens with more than 20 decimals.
