Bug 37277 Title Area Dialog requires navigation to the error message
2.1 it is currently not possible to navigate to an error message. Sceen reader users need to use the JAWS cursor to find the error message and continue. We should 1) Make the label navigable 2) Make the label the next element in the tab order after the next button (we may get this for free).
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
bottomFillerLabel = new Label(parent, SWT.CENTER);
	bottomFillerLabel.setBackground(background);
	
	setLayoutsForNormalMessage(verticalSpacing, horizontalSpacing);
	
	determineTitleImageLargest();
	if(titleImageLargest)
		return titleImage;
	else
		return messageLabel;
	
}
/**
 * Determine if the title image is larger than the title message
 * and message area. This is used for layout decisions.
 */
private void determineTitleImageLargest (){
	
	int titleY = titleImage.computeSize(SWT.DEFAULT,SWT.DEFAULT).y;
	
	int labelY = titleLabel.computeSize(SWT.DEFAULT,SWT.DEFAULT).y;
	labelY += messageLabel.computeSize(SWT.DEFAULT,SWT.DEFAULT).y;
	
	titleImageLargest = titleY > labelY;
}
	
/**
 * Set the layout values for the messageLabel, messageImageLabel and 
 * fillerLabel for the case where there is a normal message.