8 and 3 re relatively prime, so the {8/3} star is simple.

However, inside the blue {8/3} star is an {8/2} star. 8/2 reduces to 4 by dividing the top and bottom by 2, so the {8/2} star consists of two squares which are orange. Notice that the two squares are slightly different shades of orange.

Inside the {8/2} star is a {8/1} star or regular octagon.