What is the Orca trading fee?

Excuse me, could you please clarify what the Orca trading fee entails? I'm curious to understand the structure of the fees associated with trading on the Orca platform. Is it a flat fee, or does it vary based on the volume of trades or the type of assets being traded? Additionally, are there any discounts for high-volume traders or frequent users of the platform? Understanding these details will help me make an informed decision about using Orca for my trading needs.