DarkFire by JMG Sound

I'm liking DarkFire but I'm baffled by why there's no mix knob?

Most saturators have a mix knob that mixes between dry and wet. Darkfire works differently, it lets you process the difference between dry and wet (this is what is added by the saturation). Therefore, a mix knob doesn't make sense here, instead, there is a wet level knob, named "HARMONICS LEVEL"