The color coding of my templates simply let you know which size star to fit in which position after you have punched all the holes. From the bright range patch use any of the two largest size stars in the blue holes, 3rd and 4th size stars in the red and any of the remaining smaller size stars for the yellow.
Use around a half inch punch for all the holes which will let you fit all star sizes. You do not have to punch different size holes based on the color as the color is simply a visual after you punch to know which size star to place in any given position. Only one star should go in each position. Have the room correctly dark and enjoy your astronomically correct star constellations within your star field!