Originally Posted by
DOTTYMO
I think it is diamonds all the same size just colour arrangement make the difference. Should be easy to draw and then colour in to make pattern. If I remember the circle will just happen because you start from a star shape.
Agreed. The easiest thing might be to copy to paper, take a straight edge and draw lines from tip of one triangle to the tip of the far triangle and see what you get. I'm guessing something based on an 8 point star in the center----------not far off from a carpenter's star or something similar.