And here's how it looks before I added them in (along with a whole lot of other different fabrics). Comparing the two pictures I find I overall do like the look of the super-contrasty Sashing triangles. But, having them scattered around I find they really stop the eye, so maybe I'll use them as an intentional design feature. (A feature not a bug!) Or maybe I'll only use a few of them just in the corners, or even to make a star appear. Lots of possibilities and nothing is sewn together yet.