First ring:
Red: Hi-Speed
Yellow: 5 Gbps
Green: 20 Gbps
Blue: 40 Gbps
Black: charging only
Second ring: Orange: 60 W
Cyan: 240 W
Black: data only
Plus print the values on the rings in black font, for the colorblind.It’s not just for grandma, most everyone would have an easier time remembering the “working” or “fast” colors than having to think about Gbps or watts, myself included.
But then one day I was on AliExpress or Alibaba or something and seeing that you could just buy cables from some manufacturer with whatever color you wanted. And I lost faith in the reliability of color id for cables.
I'd go with yellow, like how we draw lightning.
I'm not that colorblind, I see traffic lights, fruits between leaves and other things others have problems with, basically everything except resistor rings and distant lighthouse colors (yes, the colors on a map make sense, but trying to decode them IRL is as hard as resistor codes.)
If it's not that. Call it something else. LEET, PHAT, BIGPORT.
I really don't understand. Universal Serial Bus... in 10 different formats make's it no longer universal.
USB mostly has predictably "just worked" as in "there is a port for it and it works when I plug it in".
Doubt the USB-IF can do anything about that. Those chargers either don't use the USB logo or use it illegally without passing compliance testing. Don't buy from those sellers.
Lots of people need reasonable cables to charge their phones.