Astonishingly, I have found nothing on this topic at all on Google but maybe I’ve been searching for the wrong expressions?
Is there a way to set a center point for a knob widget? At the moment, when I define a knob that goes e.g. from -127 to 127, it will still go from -127 upwards clockwise. What I would like to achieve is that it goes from 0 to 127 clockwise and from 0 to -127 counter-clockwise, I.e. if the value is 0, no bar would be shown (or only a thin line).