public static void Init()
        {
            StartScreen window = (StartScreen)GetWindow(typeof(StartScreen), true, "FXAA Start Screen");

            window.minSize = new Vector2(650, 500);
            window.maxSize = new Vector2(650, 500);
            window.Show();
        }
        static void Update()
        {
            EditorApplication.update -= Update;

            if (!EditorApplication.isPlayingOrWillChangePlaymode)
            {
                bool show = false;
                if (!EditorPrefs.HasKey(Preferences.PrefStartUp))
                {
                    show = true;
                    EditorPrefs.SetBool(Preferences.PrefStartUp, true);
                }
                else
                {
                    if (Time.realtimeSinceStartup < 10)
                    {
                        show = EditorPrefs.GetBool(Preferences.PrefStartUp, true);

                        if (!show)
                        {
                            StartScreen.StartBackgroundTask(StartScreen.StartRequest(StartScreen.BannerInfoURL, (www) =>
                            {
                                Info info = Info.CreateFromJSON(www.downloadHandler.text);
                                if (info != null)
                                {
                                    if (DateTime.Now < DateTime.Parse(info.ShowBefore) && !EditorPrefs.GetBool(Preferences.PrefForceUpdate, false))
                                    {
                                        EditorPrefs.SetBool(Preferences.PrefForceUpdate, true);
                                        EditorPrefs.SetBool(Preferences.PrefStartUp, true);
                                        StartScreen.Init();
                                    }
                                    else if (DateTime.Now > DateTime.Parse(info.ShowBefore))
                                    {
                                        EditorPrefs.SetBool(Preferences.PrefForceUpdate, false);
                                    }
                                }
                            }));
                        }
                    }
                }

                if (show)
                {
                    StartScreen.Init();
                }
            }
        }