getAppThemeCss method
Implementation
Future<String> getAppThemeCss(PaletteSettings paletteSettings,
{RequestConfig? requestConfig}) async {
var options = defaultHttpOptionsFromConfig(requestConfig);
options.responseType = ResponseType.plain;
var response = await _tbClient.post<String>('/api/whiteLabel/appThemeCss',
data: jsonEncode(paletteSettings), options: options);
return response.data!;
}