private void request_Completed(object sender, RequestEventArgs e)
{
JsonPrimitive jsonPrimitive = (JsonPrimitive)JsonObject.Parse(e.Result);
RemoveThemesResult result = RemoveThemesResult.FromJson(jsonPrimitive);
LastResult = result;
RemoveThemesEventArgs args = new RemoveThemesEventArgs(result, e.Result, e.UserState);
OnProcessCompleted(args);
}