src/vs/workbench/contrib/notebook/browser/notebookEditorWidget.ts/NotebookEditorWidget/_updateForNotebookConfiguration
class NotebookEditorWidget:	private _updateForNotebookConfiguration() {
		if (!this._overlayContainer) {
			return;
		}

		this._overlayContainer.classList.remove('cell-title-toolbar-left');
		this._overlayContainer.classList.remove('cell-title-toolbar-right');
		this._overlayContainer.classList.remove('cell-title-toolbar-hidden');
		const cellToolbarLocation = this._notebookOptions.computeCellToolbarLocation(this.viewModel?.viewType);
		this._overlayContainer.classList.add(`cell-title-toolbar-${cellToolbarLocation}`);

		const cellToolbarInteraction = this._notebookOptions.getLayoutConfiguration().cellToolbarInteraction;
		let cellToolbarInteractionState = 'hover';
		this._overlayContainer.classList.remove('cell-toolbar-hover');
		this._overlayContainer.classList.remove('cell-toolbar-click');

		if (cellToolbarInteraction === 'hover' || cellToolbarInteraction === 'click') {
			cellToolbarInteractionState = cellToolbarInteraction;
		}
		this._overlayContainer.classList.add(`cell-toolbar-${cellToolbarInteractionState}`);

	}