On: Mercedes adds a new car light color: Blue for self-driving

[jona-f]

I don't think that is quite right. Afaik, historically, in japan, green is a shade of blue. And they didn't comply with international standards, they aren't part of the Vienna Convention on Road Signs and Signals.

[arjie → jona-f]

This is how traffic lights looked when I was there https://news.ycombinator.com/item?id=37988388

Photos on a Canon consumer-level DSLR and on a Pixel 3 phone

https://imgur.com/a/S815y7o