Here are two Firewheel blocks with different backgrounds. I have to decide which one to use. I am leaning toward the black background. It looks a bit more crisp. I may use the brown on the border. Doing it again I would chose a centre fabric that is a bit less linear but it is a really nice when you look at it closely. I do need to take a lot of care in arranging the triangles so that the pattern looks right. Now, do I use sashing or not and if so, what color. So many decisions.