OptionalborderOptionaldescriptionOptionaldescriptionOptionalleftOptionalleftOptionalleftOptionalloadingOptionalloadingOptionalloadingOptionalpaddingAdditional top/bottom padding applied to the lane's content area, on top of any implicit padding
reserved by border/leftBorder/rightBorder width. A single number applies to
both edges; a 2-element array is [top, bottom].
OptionalrightOptionalrightOptionalrightOptionaltextOptionaltext
Shared top/bottom border for both panes; overridden per-pane by leftBorder/rightBorder.