src/vs/workbench/contrib/notebook/browser/diff/diffComponents.ts/PropertyHeader/refresh
class PropertyHeader:	refresh() {
		const metadataChanged = this.accessor.checkIfModified(this.cell);
		if (metadataChanged) {
			this._statusSpan.textContent = this.accessor.changedLabel;
			this._statusSpan.style.fontWeight = 'bold';
			if (metadataChanged.reason) {
				this._description.textContent = metadataChanged.reason;
			}
			this.propertyHeaderContainer.classList.add('modified');
			const actions: IAction[] = [];
			createAndFillInActionBarActions(this._menu, undefined, actions);
			this._toolbar.setActions(actions);
		} else {
			this._statusSpan.textContent = this.accessor.unChangedLabel;
			this._statusSpan.style.fontWeight = 'normal';
			this._description.textContent = '';
			this.propertyHeaderContainer.classList.remove('modified');
			this._toolbar.setActions([]);
		}
	}