Comment by Theodores

As the son of a machine tools salesman, I call the article bullshit. Sometimes things just need to be painted and sometimes you just need that WW2 surplus paint to do the job, with the colour not mattering one bit.

With anything, an academic can thread together a theory that neatly joins the dots to sound feasible, but my bet is that 99% of all engineers are stronger at physics than color theory.