修复提示框为黑色的问题

assets/middleLayer_for_NJ_lite/scene/middleLayer_for_NJ_lite.fire

@@ -358,10 +358,10 @@
     "_active": true,
     "_components": [
       {
-        "__id__": 577
+        "__id__": 576
       },
       {
-        "__id__": 578
+        "__id__": 577
       }
     ],
     "_prefab": null,
@@ -27067,7 +27067,7 @@
     "_active": false,
     "_components": [
       {
-        "__id__": 576
+        "__id__": 575
       }
     ],
     "_prefab": null,
@@ -27140,18 +27140,15 @@
     "_components": [
       {
         "__id__": 574
-      },
-      {
-        "__id__": 575
       }
     ],
     "_prefab": null,
     "_opacity": 255,
     "_color": {
       "__type__": "cc.Color",
-      "r": 0,
-      "g": 0,
-      "b": 0,
+      "r": 255,
+      "g": 255,
+      "b": 255,
       "a": 255
     },
     "_contentSize": {
@@ -27634,36 +27631,6 @@
     "_originalHeight": 0,
     "_id": "03w8txow5CI4AU30gaot/u"
   },
-  {
-    "__type__": "cc.Sprite",
-    "_name": "",
-    "_objFlags": 0,
-    "node": {
-      "__id__": 563
-    },
-    "_enabled": true,
-    "_materials": [
-      {
-        "__uuid__": "eca5d2f2-8ef6-41c2-bbe6-f9c79d09c432"
-      }
-    ],
-    "_srcBlendFactor": 770,
-    "_dstBlendFactor": 771,
-    "_spriteFrame": null,
-    "_type": 0,
-    "_sizeMode": 0,
-    "_fillType": 0,
-    "_fillCenter": {
-      "__type__": "cc.Vec2",
-      "x": 0,
-      "y": 0
-    },
-    "_fillStart": 0,
-    "_fillRange": 0,
-    "_isTrimmedMode": true,
-    "_atlas": null,
-    "_id": "c48X7gXABAUKUb5HwLkjQB"
-  },
   {
     "__type__": "cc.Widget",
     "_name": "",