Please explain your feature request to the best of your abilities:

Is there a chance for town_bank_cap to also have an option like town_plotbased_upkeep? I imagine something like town_plotbased_bank_cap (bool) and a town_bank_cap_addition (double).

If turned on, the bank cap would depend on how many chunks a town has claimed and the addition is how much the bank cap gets added per chunk.

I guess also town_plotbased_bank_cap_affected_by_town_level_modifier (boolean) and town_plotbased_bank_cap_minimum_amount (double) to stay in line with all the town_plotbased_[...] settings that already exist 😄

The intention I have is to make towns depend mostly on their size. Bigger towns pay higher upkeep but also have a higher bank cap so it balances out the shorter lifetime it would otherwise lead to.