A human-readable string which is rendered prominent. Supports rendering of theme icons via
the $(<name>)-syntax.
A human-readable string which is rendered less prominent in the same line. Supports rendering of
theme icons via the $(<name>)-syntax.
A human-readable string which is rendered less prominent in a separate line. Supports rendering of
theme icons via the $(<name>)-syntax.
Optional flag indicating if this item is picked initially. (Only honored when the picker allows multiple selections.)
Always show this item.
Represents an item that can be selected from a list of items.