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
if (index >= 0) {
            list.remove(index);
            selectionChanged();
        }
    }
    /**
     * Notifies that the list selection has changed.
     */
    private void selectionChanged() {
        int index = list.getSelectionIndex();
        int size = list.getItemCount();
        removeButton.setEnabled(index >= 0);
        upButton.setEnabled(size > 1 && index > 0);
        downButton.setEnabled(size > 1 && index >= 0 && index < size - 1);
    }
    /* (non-Javadoc)
     * Method declared on FieldEditor.
     */
    public void setFocus() {
        if (list != null) {
            list.setFocus();
        }
    }
    /**
     * Moves the currently selected item up or down.
     *
     * @param up <code>true</code> if the item should move up,
     *  and <code>false</code> if it should move down
     */
    private void swap(boolean up) {