src/vs/workbench/contrib/preferences/browser/settingsTree.ts/AbstractSettingRenderer/updateSettingTabbable
class AbstractSettingRenderer:	private updateSettingTabbable(element: SettingsTreeSettingElement, template: ISettingItemTemplate | ISettingBoolItemTemplate): void {
		if (element.tabbable) {
			addChildrenToTabOrder(template.containerElement);
		} else {
			removeChildrenFromTabOrder(template.containerElement);
		}
	}