[split] Log man

[Aga Tentakulus]

Interesting reading.
It is not the colour alone that makes me think, it is rather the change of colour and where it takes place.
So in your example in Matthew Paris's map of Britain.
Saltwater light and fresh water dark. Whether this is intentional or coincidental I cannot say. But it is there, and where the exchange takes place is logical.
That's how I see it in the pharmaceutical part. I don't see coincidence, there's purpose behind it. But I don't know why he's doing it.