My supply questions: I know you can activate a supply map filter to show supply availability in different colors. I'm wondering, though, if there is a way to get more information on a province level about supply, such as how much is it supplied. The tooltip does not show anything about supply in provinces I have no troops in. (Incidentally, it would be fabulous if the tooltip showed a bunch of information about supply when you have the supply map filter activated.)
This would also help me clear up something related that I'm confused about, such as provinces showing up as green when they don't actually have any supply that I can detect. I've included a picture to illustrate. Can anyone tell me why the "?" provinces are green? (The tooltip shows 0 supplies sent and received from my Elbe Armee there.) It seems that the province an army is in always shows up as green, even when they are rapidly losing supply. Why is that?

Thanks!