Sets whether or not @stack will interpolate its size when
changing the visible child.
If the [property@Gtk.Stack:interpolate-size] property is set
to %TRUE, @stack will interpolate its size between the current
one and the one it'll take after changing the visible child,
according to the set transition duration.
Sets whether or not @stack will interpolate its size when changing the visible child.
If the [property@Gtk.Stack:interpolate-size] property is set to %TRUE, @stack will interpolate its size between the current one and the one it'll take after changing the visible child, according to the set transition duration.