Can you use colorful icons for needed resources and monochromatic icons for supplied resources?
Our brains are wired to pay attention to the bright and colorful. Supplied resources need no attention as they are already supplied. However, needed resources need attention, therefore, I suggest to display their icons in color.
Colorful resource icons would then guide one's attention towards "needed" (missing inputs) and "wasted" (unused outputs). Monochromatic resource icons would guide one's attention away from "supplied" (supplied inputs) and "used" (used outputs).
This would allow players to scan the map more quickly and see what can be done.