Is it possible to hide the center panel of a border layout container? If not, can the east and west panels be expanded over the center panel so the right and left borders are touching?
What happens if you simply don't set a widget in the center panel? A BorderLayoutContainer is just a SimpleContainer w/ the ability to allocate space for a North, South, East and/or West widget.
As such, looking at the SimpleContainer code, the default value for the center panel widget is null.