I wonder if someone has enough knowledge of them to comment on the (usually bright?) hex signs used by the "Pennsylvania Dutch" on their farm buildings. There seems to be quite a bit of "lore" associated, but I've never looked into it much.

I believe the selection of colors available with the simple paints used probably was pretty limited, but have never heard whether specific symbols - and what they "hexed" - were associated with particular colors. Perhaps there's a whole field of heraldry to be explored.

John