<ITEM> <<glue:A>> : Specifies how a widget must fit in its own available place. <<A>> must be an atom that is any combination of <<n>>, <<s>>, <<w>> and <<e>>. If a direction is specified, the corresponding border is glued to its neighboor or border of the frame if there is no neighboor. If a direction is not specified, the corresponding border if such that the widget takes just the width or height it needs to draw itself. If none of opposite directions is specified, the widget is centered. For more details, see <ptr to="basics.geometry">.
