I know you can print it on the same material which allows the use of markers, but the color would need to be bright because the background has alot of color.
If you are saying that the Allies are landing Western Europe heavily, even reinforcing with fighters when Germany can reliably kill their beachhead, then it’s probably a bad idea unless the Allies are so far behind they need Germany to get diced. I don’t go heavily into Western Europe unless I can hold it for the rest of the game or I can hold it for a turn and have enough transports that I can pull out most of my units before Germany overwhelms them.
