src/vs/workbench/contrib/markers/browser/markersFileDecorations.ts/MarkersFileDecorations/_updateEnablement
class MarkersFileDecorations:	private _updateEnablement(): void {
		const value = this._configurationService.getValue<{ decorations: { enabled: boolean } }>('problems');
		if (value.decorations.enabled === this._enabled) {
			return;
		}
		this._enabled = value.decorations.enabled;
		if (this._enabled) {
			const provider = new MarkersDecorationsProvider(this._markerService);
			this._provider = this._decorationsService.registerDecorationsProvider(provider);
		} else if (this._provider) {
			this._enabled = value.decorations.enabled;
			this._provider.dispose();
		}
	}