Don't know what size quilt your are talking about and don't know if you want to do this but.......and please no quilt police arresting me.....I always use black in some way in all my quilts - even if it is just the label - it is my "signature." And since I do a lot of art quilts I have used the white in your instance and then used a sharpie permanent marker to go over the white threads on the black. :oops: