For me the very dark colours for the deep sleep phases look like a time period where the app didn’t work, that’s an confusing way of diagram. I tried since months to get a usable colour setting. It would be nice to implement not constant colour sets but the option to set individual colours for each sleep phase.
I also love the sleep diagrams from the app “Sleep Monitor” from SM Health team (Google play store).
Sorry I don’t know how to upload a diagram.
You should’ve learned how to upload a picture in the tutorial