I attended a lecture by Edyta herself. She recommends invisible or monofilament as the top thread and a thread for the bottom that matches the background. She uses heat and bond fusible. Her samples were all appliqued with a zig-zag with her machine on 1 for width and length. Quilting was done by long-arm. Most threads appeared to blend with the background. I have seen samples of her work done by quilt shops that matched the top thread to the applique but that had to have been very tedious and required many thread changes. But they were beautiful as well. I would be curious to see one done with the blanket stitch.