I think enabled one-way bands should be colored
differently (green or red) from normal enabled
Foldit bands (purple). A one-way band that applies
a force only when its present length is greater
than its target length could be green. A one-way
band that applies a force only when its present
length is smaller than its target length could
be red. Thus, the green bands would only apply
nonzero inward (attractive) forces, and the red
bands would only apply nonzero outward (repulsive)
forces. The one-way bands could be very thin (but
still green or red) when they are not applying
forces and the normal thickness when they are
applying nonzero forces. Both normal and one-way
bands could be gray when they are disabled.
