It would help a lot if we could click on a global resource (on the tiny global resource panel at the top) to get details on where the income for global resources is coming from, what the expenses are, and what global % bonuses or penalties are being applied, similar to how one can with the resources on settlements.

This would help out a lot when trying to figure out where to stick the one-per-game or one-per-civ wonders to improve resource output, by finding the settlement producing the most of that resource, and even with the 1-per-settlement, help figure out which settlements could use resource boosts and enchantments.

It would also help us players figure out whether stuff that is supposed to affect resources actually is.

Also, it isn't made clear that "Food" is not a globally accruing resource but merely per-turn.  It might also help to optionally expand that little summary panel at the top to show the net gain/loss per turn for each resource (not counting stuff found in goodie huts or taken in battle) instead of just the current stockpiles.