Huh. I’ve never heard of that quilt pattern before. It seems like this person ‘created a pattern’ out of a quilting tradition that’s been around since time immemorial. The orange pieces on my quilt are called sashing, and the purple contrast blocks are called cornerstones. Usually you’ll just hear it called ‘sashing’ among quilters. It’s a way to tie your unique blocks together, while also setting them up as separate blocks. If that makes sense. Unlike a pattern where you might want all your blocks to touch, to create a larger overall pattern.
For example, if you make a Triple Irish Chain, you make all the same block, then connect them so you get a chain or net across the whole quilt:
Usually with sashing, you are taking different blocks, then using the sashing to unite them. Sometimes they are pieced blocks, and sometimes they are solid blocks, like in @AudiobookLover’s Eye Spy Quilts.
I’m not trying to shame the pattern writer, but it seems like they wrote down a common technique as though it is their own pattern they thought up.