I am following How to make towels tutorial by BlenderGuru.
I can't seem to get that sharp red to blue that he does. My selection includes the full weight gradient (greens and yellows. view images). Is there a setting that I am missing? BTW - The vertex group is the whole mesh with weight set to 1, and the selections are set to a weight of 0.
UPDATE: adding blend file in case anyone wants to take a look at it. Note - the particle system was removed to reduce the file size