When you have a quilt with several colors on the front and for instance a dark print, such as navy, on the back, how do you decide what color thread to use. Do you use the same color on the front and back or match the back for instance. Do you always use the same color in the top and bobbin thread? I will soon be quilting on the LA one that is red, black and green on the front and large blocks of these colors on the back. I am curious what some of you do about this issue.