I spotted a tutorial for this Scrappy Shine quilt on Fons and Porters Youtube.
Here is a close-up of the star. I did not follow the technique fully, as I do like ending up with small triangle scraps. I decided to take the squares making the stars' rays and cut them in half and just use them as is risking some wonky stars. It did not turn out as wonky as expected (desired?) as the pieces were rather small.
In any case, the quilt was easy to quilt using this diagonal technique. I used scraps from the top for the quilt back, in additional to some ash rose flannel that I received from a friend.
Have a surprising day!