Bug 10550 Hilight cursor row (accessibility for the visually impaired)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				PreferenceConverter.setValue(fOverlayStore, AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND, fBackgroundColorEditor.getColorValue());					
			}
		});
		fBoldCheckBox.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				int i= fList.getSelectionIndex();
				String key= fListModel[i][1];
				fOverlayStore.setValue(key + "_bold", fBoldCheckBox.getSelection());
			}
		});
				
		return colorComposite;
	}
	
	private Control createPreviewer(Composite parent) {
		
		fJavaTextTools= new JavaTextTools(fOverlayStore);
		
		fPreviewViewer= new SourceViewer(parent, null, SWT.V_SCROLL | SWT.H_SCROLL);
		fPreviewViewer.configure(new JavaSourceViewerConfiguration(fJavaTextTools, null));
		fPreviewViewer.getTextWidget().setFont(JFaceResources.getFontRegistry().get(JFaceResources.TEXT_FONT));
		fPreviewViewer.setEditable(false);