PortIncomeReversion.pack
The "Hunter and Beast" patch significantly nerfed the income of port structures, lowering them sometimes by up to 75% and readjusting ports to no longer vary by race. This reverts all port income changes from the patch, including special ports like Marienburg.
Should be save game compatible!
Special thanks to FrostyDemise who gave me the solution to an error with my mods being unable to update!