src/vs/workbench/contrib/themes/browser/themes.contribution.ts/AbstractIconThemeAction/constructor
class AbstractIconThemeAction:	constructor(
		id: string,
		label: string,
		private readonly quickInputService: IQuickInputService,
		private readonly extensionGalleryService: IExtensionGalleryService,
		private readonly viewletService: IViewletService

	) {
		super(id, label);
	}