Did you know white containers contain perishables? White reflects the sun and keeps the containers cool. They do, so why don't we paint all the houses white in the desert?
Why do they make certain tools red, turquoise, blue, black and yellow... I really don't know... Maybe it is part of the working conditions of the best dockers in the world so that they can keep a colorful outlook on life in view of the automatisation that decimates jobs. A few years ago there were still 140.000 dockers, today on this harbor only 70.000 found a hard but well paid job.