Yes, the article itself is nice but the title isn't. "Why it took us thousands of years to see the colour violet". What do you make of plums in still life pain

Yes, the article itself is nice but the title isn't. "Why it took us thousands of years to see the colour violet". What do you make of plums in still life paintings? I don't know if it fills the criteria for violet. https://vsemart.com/wp-content/uploads/2015/02/Peaches-and-plums.-Jacob-van-Hulsdonck.jpg https://vsemart.com/wp-content/uploads/2015/02/Peaches-and-p...