Bug 13507 LinkedPositionUI has a reference to SWT.COLOR_RED
LinkedPositionUI(ITextViewer, LinkedPositionManager) - org.eclipse.jdt.internal.ui.text.link.LinkedPositionUI has a reference to SWT.COLOR_RED which will be unreadble if the user sets their background colour to Red. We will be adding a getErrorText colour to JFaceColours in build >20020411. You may want to use that.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
return fPreviewViewer.getControl();
	}
	
	private Color fBackgroundColor;
	
	/**
	 * Initializes the given viewer's colors.
	 * 
	 * @param viewer the viewer to be initialized
	 */
	private void initializeViewerColors(ISourceViewer viewer) {
		
		IPreferenceStore store= fOverlayStore;
		if (store != null) {
			
			StyledText styledText= viewer.getTextWidget();
						
			
			Color color= store.getBoolean(AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT)
				? null
				: createColor(store, AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND, styledText.getDisplay());
			styledText.setBackground(color);
				
			if (fBackgroundColor != null)
				fBackgroundColor.dispose();
				
			fBackgroundColor= color;
		}
	}