src/vs/workbench/contrib/markers/browser/markersView.ts/MarkersView/saveState
class MarkersView:	override saveState(): void {
		this.panelState['filter'] = this.filters.filterText;
		this.panelState['filterHistory'] = this.filters.filterHistory;
		this.panelState['showErrors'] = this.filters.showErrors;
		this.panelState['showWarnings'] = this.filters.showWarnings;
		this.panelState['showInfos'] = this.filters.showInfos;
		this.panelState['useFilesExclude'] = this.filters.excludedFiles;
		this.panelState['activeFile'] = this.filters.activeFile;
		this.panelState['multiline'] = this.markersViewModel.multiline;

		super.saveState();
	}