If you set direction of a DualList to JideSplitPane.VERTICAL_SPLIT, the icons are aligned vertically, using a lot of space, but i think they should be aligned horizontally, to occupy less space and keep a better layout.
Icons and their text should be corrected too, "Move the selected items to the right" should become "Move the selected items to the bottom" and so on.
What do you think?
Andrea