Sewhappygal.... I just use plain ole'Crayolas to color with to color the picture, then put a piece of paper over it while ironing so the wax doesn't get on my iron. If the color isn't as dark as you like after ironing it, just color again building up the layers to how dark you want it. Easy peasy. Now some will do the before doing the stitching and anothers do it after ... so what ever way you prefer works.
Thanks for the wonderful comments Y'all! I started doing an echo hand quilting on it last night while watching TV. I got half way around the design.
Sincerely,
Tricia