src/vs/workbench/contrib/markers/browser/markersView.ts/MarkersView/getDefaultViewMode
class MarkersView:	private getDefaultViewMode(): MarkersViewMode {
		switch (this.configurationService.getValue<string>('problems.defaultViewMode')) {
			case 'table':
				return MarkersViewMode.Table;
			case 'tree':
				return MarkersViewMode.Tree;
			default:
				return MarkersViewMode.Tree;
		}
	}