StabilityFeeTreasury - this contract tries to keep an "optimum" amount of stability fees for itself in order to make sure it can provide funds to other contracts (or in some cases, people) that maintain the protocol's well-being. Anyone can periodically call a function to recalculate the optimum amount of funds to keep in the treasury. Any surplus above optimum values is transferred to the extraSurplusReceiver.FSMWrapper - this contract is meant to act as a funding source for FSM-like contracts as well as an interface that allows other contracts to read data from the FSM integrated with the wrapper.IncreasingTreasuryReimbursement - this contract is meant to be inherited from and used as a way to offer an increasing stability fee reward (pulled from the SF treasury) to any address.MandatoryFixedTreasuryReimbursement - this is a contract meant to be inherited from and used as a way to offer a fixed stability fee reward (pulled from the SF treasury) to any address.IncreasingRewardRelayer - this is a contract meant to pull funds from the StabilityFeeTreasury and send them to a custom address. It inherits functionality from the IncreasingTreasuryReimbursement contractStabilityFeeTreasury would potentially block other contracts from pulling funds or would incorrectly calculate the optimum amount of funds to keep in the contract (SAFEEngine.coinBalance[stabilityFeeTreasury]). A bug could also prevent the treasury from sending extra unused resources to another address using transferSurplusFunds()IncreasingTreasuryReimbursement contract could block the execution of rewardCaller() or it would make it impossible for someone to call getCallerRewardIncreasingTreasuryReimbursement contract, a bug inMandatoryFixedTreasuryReimbursement could block the execution of rewardCaller()extraSurplusReceiver in the StabilityFeeTreasury or could maliciously withdraw the permission of core contracts to pull funds. Governance could also allow malicious contracts to drain the treasury.maxRewardIncreaseDelay and perSecondCallerRewardIncrease inside IncreasingTreasuryReimbursement and thus make getCallerReward revertStabilityFeeTreasury if two conditions are satisfied:StabilityFeeTreasury is part of the Level 2 Gov Minimization. That being said, governance should maintain control only over setting total allowances to their initial values for every address that's currently authorized to pullFunds from the treasury.FSMWrapper may need to have leftover governance (depending on how much governance wants to automate reward setting).IncreasingRewardRelayer can have governance in the long run, depending on how much governance wants to remove themselves from the contract and also on what the contract is requesting rewards for.IncreasingTreasuryReimbursement and MandatoryFixedTreasuryReimbursement are meant to be inherited by other contracts and so the contracts that inherit them will determine how much they can be governance minimized.takeFundsStabilityFeeTreasury.takeFunds has very simple and clearly defined behaviour, it can be governed in the long run.