You know when you are making hst and you go to sew them together and you have that little bit of light where the dark should be, in the corner? A very famous quilter who swore us to silence, pulled out her supply of permanent pens, fine point, and touched up every corner and the quilt was perfection. You could not see what she had done. She said very few quilts that you see photographed have not had this trick used on them. I do it now and again but I like to get perfection on my own. It washes beautifully, never runs or disappears.