Topic0 of event with enum?

Question

What would be the topic0 of an event with an (or multiple) enums or other non-standard, self-defined Solidity types in its parameters?

Example:

event EvInventory(bytes32 indexed itemHash,address maker,address taker,uint256 orderSalt,uint256 settleSalt,uint256 intent,uint256 delegateType,uint256 deadline,IERC20Upgradeable currency,bytes dataMask,Market.OrderItem item,Market.SettleDetail detail);