I agree with the above statement, you do not have to embroider to match the lines, but I was told that these lines would probably stay on. I did the blue redwork on a panel of children at christmas, I think by anna leah?, it could be done in blue (which I did) or another identical was red, which I bought anyways, not sure if I will ever get to it, but I have it anyways. Speaking of this panel, it was made up of nine squares and as luck would have it I had to cut it up into squares, as it was not square. I do enjoy redwork any color!