Bug 45509 Allow to disable icons in vertical ruler
I20031023 A feature for Dirk
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
stylesComposite.setLayout(layout);
		stylesComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
		
		l= new Label(stylesComposite, SWT.LEFT);
		l.setText(PreferencesMessages.getString("JavaEditorPreferencePage.color")); 
		gd= new GridData();
		gd.horizontalAlignment= GridData.BEGINNING;
		l.setLayoutData(gd);
		fAppearanceColorEditor= new ColorEditor(stylesComposite);
		Button foregroundColorButton= fAppearanceColorEditor.getButton();
		gd= new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalAlignment= GridData.BEGINNING;
		foregroundColorButton.setLayoutData(gd);
		fAppearanceColorList.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				handleAppearanceColorListSelection();
			}
		});
		foregroundColorButton.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {
				
			}
			public void widgetSelected(SelectionEvent e) {
				int i= fAppearanceColorList.getSelectionIndex();
				String key= fAppearanceColorListModel[i][1];
				
				PreferenceConverter.setValue(fOverlayStore, key, fAppearanceColorEditor.getColorValue());