It's a pattern...You have two main coordinating colors, that make up diamonds. So color A will form a row with their left/right points touching, and their top/bottom points touching to form a color--color B will be all the points in between.
There's usually at least one, sometimes two, thin lines in another Color C that cuts through the A & B colors to form new diamonds. If you do a Google Images search for argyle you'll see it and recognize it. :hug: