With great power comes great responsibility; I shall start with something small so all this power doesn't go to my head!

So here is my dumb but serious question of the day:

Why the hell can't the American Dairy industry set a color code standard for milk bottle tops? Every brand colors skim, 1%, 2% and whole differently, and changes the colors on a whim it seems.

I mean I could read the label before grabbing a milk bottle off the shelf; but that just requires SO much effort.