Comment by petercooper

This has begun to happen in the UK as well, and I'm struggling to get anyone else to see it. Traffic lights installed in the past couple of years seem to use a new style of LED that emits a turquoise light instead of green. I took a picture and looked at the RGB value and the G/B were equal. Everyone else I ask says they still look green. Here's an example: https://static.independent.co.uk/2022/04/22/00/21135757-1ac1...