I'm trying to get a blue and white checkerboard pattern on the lycra. I don't care what platform - Designer, Sampler, Painter - as long as I can create the checkerboard on lycra. Thanks.
the easiest way would be to use the Checker 1 Node in Designer and use it as a mask for a Blend Node.
Replace the Uniform Color Nodes, I used for visualisation with your actual fabric in two colors, or event use the uniform colors and blend them afterwards.