tour416: Perhaps remove "We also set some further (implicit) design constraints, loosely following Adwaita's principles."
https://xfce.org/about/tour416 have the following text near the top:
We also set some further (implicit) design constraints, loosely
following Adwaita's principles.
Maybe remove it or write it differently.
I guess since it's a tour it should perhaps be kept simple and easy to understand for everyone.
Also maybe remove the word "upstream" from:
New upstream Xfce icons, coming in many sizes for sharp appearance