src/vs/workbench/contrib/notebook/browser/view/cellParts/cellFocusIndicator.ts/CellFocusIndicator/getIndicatorTopMargin
class CellFocusIndicator:	private getIndicatorTopMargin() {
		const layoutInfo = this.notebookEditor.notebookOptions.getLayoutConfiguration();

		if (this.titleToolbar.hasActions) {
			return layoutInfo.editorToolbarHeight + layoutInfo.cellTopMargin;
		} else {
			return layoutInfo.cellTopMargin;
		}
	}