src/vs/workbench/contrib/preferences/browser/preferencesRenderers.ts/SettingHighlighter/constructor
class SettingHighlighter:	constructor(private editor: ICodeEditor, @IInstantiationService instantiationService: IInstantiationService) {
		super();
		this.fixedHighlighter = this._register(instantiationService.createInstance(RangeHighlightDecorations));
		this.volatileHighlighter = this._register(instantiationService.createInstance(RangeHighlightDecorations));
	}