Bug 25419 [Dialogs] Can't Maximize Window: "Preferences"
Build: 200210181211 The "Preferences" window cannot be maximized since it neither has a maximize title bar button nor does the title bar respond to being double-clicked. The only work around is to reside the window manually by dragging the border. For short-lived windows this is too detail-oriented and time-consuming.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
Display display = parent.getDisplay();
	Color background = JFaceColors.getBannerBackground(display);
	Color foreground = JFaceColors.getBannerForeground(display);
	
	GridData layoutData = new GridData(GridData.FILL_BOTH);
	titleArea.setLayout(layout);
	titleArea.setLayoutData(layoutData);
	titleArea.setBackground(background);
	
	titleArea.addDisposeListener(new DisposeListener() {
		public void widgetDisposed(DisposeEvent e) {
			if (titleAreaColor != null)
				titleAreaColor.dispose();
			if (errorMsgAreaBackground != null)
				errorMsgAreaBackground.dispose();
		}
	});
	
	messageLabel = new CLabel(titleArea, SWT.LEFT);
	JFaceColors.setColors(messageLabel,foreground,background);
	messageLabel.setText(" ");
	messageLabel.setFont(JFaceResources.getBannerFont());
	
	final IPropertyChangeListener fontListener = new IPropertyChangeListener() {
		public void propertyChange(PropertyChangeEvent event) {
			if(JFaceResources.BANNER_FONT.equals(event.getProperty()) ||
				JFaceResources.DIALOG_FONT.equals(event.getProperty())) {
				updateMessage();