Earlier quoted context omitted.
Not only that but it seems like color from icons has gone - now we get black and white ones. I'd get it if these companies making the UX were small, because yes its super hard to deal with accessibility and different color blindness but I agree - we've lost anything but the extremest of the extreme colors.
The ironic thing about icons losing their color and detail is that it happened right as high DPI displays began to become commonplace in consumer hardware. We have these amazing screens with barely visible pixels and excellent color reproduction being wasted on rendering monochrome lines.
That aside, high dpi displays are still a rare sight on desktops, there’s not many of them and the aspect ratios and ancillary features are extremely limited.