There's no need for clamping, afaik, but it's just complementing. What I don't understand is how the green to scalar (or blue/red) works here. I see a subtle difference, but 1. where does it get its green/blue/red from? (no input needed apparently

) and 2. is it adjustable? I don't think so.
Btw, you can easily adjust the outcomes by adding a scalar, or even a variable.