src/vs/workbench/contrib/preferences/browser/settingsTree.ts/SettingComplexRenderer/renderValue
class SettingComplexRenderer:	protected renderValue(dataElement: SettingsTreeSettingElement, template: ISettingComplexItemTemplate, onChange: (value: string) => void): void {
		template.onChange = () => this._onDidOpenSettings.fire(dataElement.setting.key);
		this.renderValidations(dataElement, template);

		template.button.element.setAttribute('aria-label', `${SettingComplexRenderer.EDIT_IN_JSON_LABEL}: ${dataElement.setting.key}`);
	}