Bug 189529 [CommonNavigator] Project Navigator - Customization dialog should use straight tabs or border
3.3. I0527 1. Open the resource perspective with the Project Navigator 2. Click the view menu and select "Customization" The resulting dialog has two tabs along the tops. These tabs look odd because they are using the curved style but no top border. Thus you get a curve for the unselected tab but that curve just stops. The dialog is better to use the traditional tab style, or it needs to add a top border (which probably won't look good though). Other choise is to use the 3.0 presentation style, which is curved selected tab but straight for the non selected.
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/filters/CommonFilterSelectionDialog.java
private static final String FILTER_ICON = "icons/full/elcl16/filter_ps.gif"; 
	private static final String CONTENT_ICON = "icons/full/elcl16/content.gif"; 
	private static final int TAB_WIDTH_IN_DLUS = 300;
	private static final int TAB_HEIGHT_IN_DLUS = 150;
	private final CommonViewer commonViewer;
	private final INavigatorContentService contentService;
	private CTabFolder customizationsTabFolder;
	private CommonFiltersTab commonFiltersTab;
	private ContentExtensionsTab contentExtensionsTab;
	private Text descriptionText;
	private ISelectionChangedListener updateDescriptionSelectionListener; 
	protected CommonFilterSelectionDialog(CommonViewer aCommonViewer) {
		super(aCommonViewer.getControl().getShell());
		setShellStyle(SWT.RESIZE | getShellStyle());