This is a fan project, like the Lord Inquisitor was. GW has absolutely nothing to do with it!
Very Very Cool Indeed Indeed
Karthik J has shared a Catherine window substance for you to study complex materials. The full graph is available for free, so you can study all the elements and create your own rose window.
A fully procedural Catherine window strongly inspired by “Rose Window” by Mark Foreman.
This was done mainly as a study to understand the Curve node and the complexity involved with building height layers.