src/vs/workbench/contrib/markers/browser/markersTreeViewer.ts/MarkerRenderer/renderTemplate
class MarkerRenderer:	renderTemplate(container: HTMLElement): IMarkerTemplateData {
		const data: IMarkerTemplateData = Object.create(null);
		data.markerWidget = new MarkerWidget(container, this.markersViewState, this.openerService, this._configurationService, this.instantiationService);
		return data;
	}