Have an explanation for all those bars on the website

Luna Rising 5 years ago updated by Aymeric (Founder) 5 years ago 2
I like weekplan.net, but there are a bunch of bars that are grey and filled in with some other colour. I figured out, for instance, that the one at the top of the week is just tracking the time. However, I still don't know what the bars above my roles are, and there's a few more I've seen on the website.
Under review
You can find a video on momentum bars on this page: http://weekplan.net/tutorials/