src/vs/workbench/contrib/preferences/browser/settingsEditor2.ts/SettingsEditor2/focusedSettingDOMElement
class SettingsEditor2:	private get focusedSettingDOMElement(): HTMLElement | undefined {
		const focused = this.settingsTree.getFocus()[0];
		if (!(focused instanceof SettingsTreeSettingElement)) {
			return;
		}

		return this.settingRenderers.getDOMElementsForSettingKey(this.settingsTree.getHTMLElement(), focused.setting.key)[0];
	}