add change trains

Assets/Scripts/UIHelp.cs

@@ -0,0 +1,22 @@
+using System.Collections;
+using System.Collections.Generic;
+
+using DG.Tweening;
+using UnityEngine;
+
+[RequireComponent(typeof(CanvasGroup))]
+public class UIHelp : MonoBehaviour
+{
+    private CanvasGroup canvasGroup;
+
+    void Start()
+    {
+        canvasGroup = GetComponent<CanvasGroup>();
+    }
+
+    public void OK()
+    {
+        canvasGroup.DOFade(0, .4f)
+            .OnComplete(() => gameObject.SetActive(false));
+    }
+}