Yes. And not just for printers and e-ink. In most parts of the world, 6-10% of population have some degree of color blindness: https://en.wikipedia.org/wiki/Co

Yes. And not just for printers and e-ink. In most parts of the world, 6-10% of population have some degree of color blindness: https://en.wikipedia.org/wiki/Color_blindness#Epidemiology https://en.wikipedia.org/wiki/Color_blindness#Epidemiology I’m not one of them but that’s huge count of people. Ideally, interfaces/visualizations need to be designed accordingly.