OptionalchordOptionaldangerOptionaldisabledOptionaliconChrome icon id, or inline SVG markup starting with <svg.
OptionalidStable id, for tests and for a host that wants to find a row.
OptionalkeepKeep the menu up after running (a switch the user may flip twice).
OptionalkindOptionalmarkA switch (tick) or one option of a choice (dot).
OptionalnoteWhy a disabled row is disabled; an empty greyed row reads as a bug.
Optionalon
Chord hint, shown at the right.