It’s the 17th-century Italian idea that never goes out of style.
Bargello needlework, also called Florentine canvas work, “is a kind of embroidery exemplified in the upholstery of a set of 17th-century Italian chairs at the Bargello in Florence (EB).” The picture above is a modern version, but a more typical pattern from the era, often called a flame stitch, is the following:
This type of work requires a painstaking precision.
Here are some other modern examples:
Even one that is relatively monotone has its charms:
They often have a 3D effect: