I was actually wrong about the mystery pattern! And I'm perfectly happy with the actual version. :)
Don't the center blocks look like sunsets or something? It's a piece my mom dyed, you can see it in this post, at the top of the very first picture. It can be surprising how much red didn't stick to the final piece. I think I'll use the rest of it for a border.
I have to say, sewing with Kona Black and P&B Dyer's Fabric has been an absolute dream. Not a single pin needed. Essential thread literally slides like butter through these top-notch fabrics. I don't have to worry about distorting the blocks when I iron either. It's good quality fabric. You'd think the way I'm swooning over it I would be advertising for it! :P
And yes, it's actually crossed my mind to get rid of my stash and have only hand dyed fabrics. Hopefully it was only a fleeting thought. ;)