Yes there are different shades of teal in the design of the Arduino stuff but those I've seen so far (except the one I'm complaining about) only differ in brightness not hue. And maybe I'm kind of special concerning things like design issues since I spent many years working on such things.
I get that. I've been a glassblower for 20 years and I grind my teeth over minor details on glass pieces that the average person either wouldn't notice or would think were done intentionally.
As someone who has spent the last 7 years providing support to Arduino users, I get very steamed up about little things I see professional developers do in Arduino sketches that they don't even think twice about, but I know will cause difficulties for beginners.
So, to make things short: Who do you think I should address?
The best way to report this is via the Arduino support form: