spacer

Empty space between widgets.

Setting	Type	Default	Description
length	number	20	Spacer length in screen pixels
expand	bool	false	Grow into an equal share of the lane’s free space. Start and end lanes only; in the center lane, a capsule group or a full lane it keeps length.
interactive	bool	false	Spacers are click-through by default. Set true to enable hover/clicks/scrolls (for example as a hidden hot zone with [widget.spacer.actions]).

[widget.gap]
type   = "spacer"
length = 24

Two expanding spacers around a widget center it in the free space of its lane, whatever the width of its neighbours. Here the media widget sits halfway between the center lane and the system tray:

[bar.default]
end = ["spacer", "media", "spacer", "tray", "volume", "session"]

[widget.spacer]
expand = true

This makes every plain spacer expand. To keep fixed spacers too, give the expanding ones their own name, for example [widget.spring] with type = "spacer" and expand = true.