src/vs/workbench/contrib/notebook/browser/view/cellParts/cellComments.ts/CellComments/constructor
class CellComments:	constructor(
		private readonly notebookEditor: INotebookEditorDelegate,
		private readonly container: HTMLElement,

		@IContextKeyService private readonly contextKeyService: IContextKeyService,
		@IThemeService private readonly themeService: IThemeService,
		@ICommentService private readonly commentService: ICommentService,
		@IConfigurationService private readonly configurationService: IConfigurationService,
		@IInstantiationService private readonly instantiationService: IInstantiationService
	) {
		super();
		this.container.classList.add('review-widget');

		this._register(this.themeService.onDidColorThemeChange(this._applyTheme, this));
		// TODO @rebornix onDidChangeLayout (font change)
		// this._register(this.notebookEditor.onDidchangeLa)
		this._applyTheme();
	}