src/vs/workbench/contrib/markers/browser/markersFileDecorations.ts/MarkersFileDecorations/constructor
class MarkersFileDecorations:	constructor(
		@IMarkerService private readonly _markerService: IMarkerService,
		@IDecorationsService private readonly _decorationsService: IDecorationsService,
		@IConfigurationService private readonly _configurationService: IConfigurationService
	) {
		//
		this._disposables = [
			this._configurationService.onDidChangeConfiguration(this._updateEnablement, this),
		];
		this._updateEnablement();
	}