Note that inside the {12/5} star which is blue, the purple star is a {12/4} star. 12/4 reduces down to 3 by dividing the top and bottom by 4, so the {12/4} star consists of 4 equilateral triangles. Notice that each triangle is a slightly different shade of purple.

Inside the {12/4} star is a {12/3} star which is green. 12/3 reduces to 4, by dividing the top and bottom by 3, so the {12/3} star consists of 3 squares. Notice that the three squares are all a slightly different shade of green.

Inside the {12/3 star is a {12/2} star which is orange. 12/2 reduces to 6 by dividing the top and bottom by 2 so the {12/2} star consists of 2 regular hexagons. Notice that the two hexagons are slightly different shades of orange. Box and socket wrenches use the {12/2} star shape.

Inside the {12/2} star is a yellow {12/1} star or regular dodecagon.