Morten, there are many places with green water, including mineral spas that have been popular bathing areas for thousands of years.
But as I said, it might be irrelevant. The illustrator only had five colors. Would you expect that person to use brown and red for the water?
But as I said, it might be irrelevant. The illustrator only had five colors. Would you expect that person to use brown and red for the water?

