One entry of stylingFoundationsKnobCatalogue, with what a UI or a coding agent needs to offer the knob and validate a value for it, with no map loaded. It carries no default, since the loaded style decides it. getKnob reads the value in force.
default
Which styles the knob works on. See stylingFoundationsKnobAppliesTo.
Optional
The knob's id, as accepted by setKnob.
One entry of stylingFoundationsKnobCatalogue, with what a UI or a coding agent needs to offer the knob and validate a value for it, with no map loaded. It carries no
default, since the loaded style decides it. getKnob reads the value in force.