After some days on the angulardart.dev...
As a newbie to dart & angular, I think Google can enhance the tutorial by adding a visual map of files for each subject
that the reader can see a subject (let's say Binding) and how it reflects in these files( in some graphical way, colors, arrows, links and such)
It can be very helpful, Jumping from one file to others, while dealing with a new subject is time-wasting.