Bug 73027 [Dialogs] Buttons are too high
I20040831 Buttons are no longer oval but have a rounded rectangle shape (see first screenshot). The second screenshot shows how buttons using the small system font should look like.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/ListEditor.java
*/
    private List list;
    /**
     * The button box containing the Add, Remove, Up, and Down buttons;
     * <code>null</code> if none (before creation or after disposal).
     */
    private Composite buttonBox;
    /**
     * The Add button.
     */
    private Button addButton;
    /**
     * The Remove button.
     */
    private Button removeButton;
    /**
     * The Up button.
     */
    private Button upButton;
    /**
     * The Down button.
     */
    private Button downButton;
    /**
     * The selection listener.
     */
    private SelectionListener selectionListener;
    /**
     * Creates a new list field editor 
     */