Bug 51644 [typing] The word "squigglies" does not exist
I200402102000 We can either use "squiggles" or "squiggly lines"
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
fBoldCheckBox.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				int i= fSyntaxColorList.getSelectionIndex();
				String key= fSyntaxColorListModel[i][1];
				fOverlayStore.setValue(key + BOLD, fBoldCheckBox.getSelection());
			}
		});
				
		return colorComposite;
	}
	
	private Control createPreviewer(Composite parent) {
		
		Preferences coreStore= createTemporaryCorePreferenceStore();
		
		fJavaTextTools= new JavaTextTools(fOverlayStore, coreStore, false);
		
		fPreviewViewer= new JavaSourceViewer(parent, null, null, false, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
		fPreviewViewer.configure(new JavaSourceViewerConfiguration(fJavaTextTools, null, IJavaPartitions.JAVA_PARTITIONING));
		Font font= JFaceResources.getFont(PreferenceConstants.EDITOR_TEXT_FONT);
		fPreviewViewer.getTextWidget().setFont(font);
		new JavaSourcePreviewerUpdater(fPreviewViewer, fJavaTextTools);
		fPreviewViewer.setEditable(false);
		
		String content= loadPreviewContentFromFile("ColorSettingPreviewCode.txt"); 
		IDocument document= new Document(content);
		fJavaTextTools.setupJavaDocumentPartitioner(document, IJavaPartitions.JAVA_PARTITIONING);