# Fill (leaf)

This is used for spacing other objects. Fill uses the background color, and it is essentially a shorthand for `(Glue 0 + Inf)`.

Shape
  Both dimensions have zero preferred and minimum size and are infinitely stretchable. Thus, the non-principal direction takes on the same shape as its parent.
Notes
  Must be a child of a horizontal or vertical split (`HBox`, `HVTile`, `VBox`, or `VTile`).
See Also
  Glue