Here's my working diagram of the "purple quilt" (just to clarify, this shows 4 blocks). There will be 6x7 full blocks so 42 different purples. Right now the plan is for an additional set of half blocks all around the outer edges using the same dark purple fabric to provide a border. Ideally, I would have enough of a single white fabric to use with those, but I don't think I have a big enough piece -- but should find out today! I really like how there is exactly the same amount/shape of the background as there is the color part and how the pieces tesselate together.