The "pattern" was basically in my head - but I did work it out in EQ7. Basically, just sashing strips in the dark blue with light blue corner squares. What created the secondary diagonal feel was turning every other D9P block 90 degrees - putting the pink corners into a diagonal lineup, then the light blue corner squares were alternately in the center of pink squares and then in blue. Make sense to you? I will attach a block and a quilt layout.
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