Comment by ano-ther

The knob is clever and very well emulates a physical knob. That's not a good design for an on-screen one though.

- Going "around the rim" in an arc is difficult both for touch and mouse. Results in jerky motion.

- Defining the direction based on which outer rim I am closer to makes it unpredictable, especially for small knobs.

Best in my opinion is the "click / hold the knob and pull vertically or horizontally with up/right turning to the right. Makes it fast and predictable even with little space like a DAW audio mixer.