I've just started playing with epp and have a beginners question. I'm making the 1 1/2 inch 6 point diamond shape with Moda Midwinter Red 2 1/2 inch charms. The fabric has pieces that are red, brown, beige and cream. I have about 40 individual pieces done and am starting to put them together into the star shape. Do you use coordinating thread with the different fabrics or just something neutral with everything?