The artist Alphonse Mucha associated blue with the past: "Black is the colour of bondage, blue is the past, yellow the joyous present, orange the glorious future."
Blue of course is a cold color. Perhaps one of the less eccentric colors, and ubiquitous as the author mentions. So in line with the disappearance of color from modern design, it is one of the few remaining colors in our vision of the future.
I feel like at this point Dart suffers from being a Google project: Google decides its fate, and Google has built a rather poor reputation when it comes to stability. I don't have concrete evidence, but I think the Google culture adheres more to the rolling release and move fast and break things ideology. I personally witnessed several of my own Dart projects needing serious refactoring after just a few years.
Also, I feel like Dart is a maximalist project. "Batteries included" also means a whole myriad of tools and libraries also at the grace of the Google Dart team.
Blue of course is a cold color. Perhaps one of the less eccentric colors, and ubiquitous as the author mentions. So in line with the disappearance of color from modern design, it is one of the few remaining colors in our vision of the future.