Enter the Flat Fell Foot. We see the product of this little device pretty much every day. It’s used to make those encased seams on our jeans, among other things. Here is a link to a video about how to use a flat fell foot, courtesy of Heirloom Creations.
Rows of matching Billy bookcases from Ikea work well here. Consider that the books and accessories offer the pop while the bookcases provide the background. (contemporary living room by Smith & Vansant Architects PC)