diff --git a/assets/Scene/Main.fire b/assets/Scene/Main.fire
index 532b6c8..d5af5cc 100644
--- a/assets/Scene/Main.fire
+++ b/assets/Scene/Main.fire
@@ -73,18 +73,21 @@
       },
       {
         "__id__": 5
+      },
+      {
+        "__id__": 7
       }
     ],
     "_active": true,
     "_components": [
-      {
-        "__id__": 8
-      },
-      {
-        "__id__": 9
-      },
       {
         "__id__": 10
+      },
+      {
+        "__id__": 11
+      },
+      {
+        "__id__": 12
       }
     ],
     "_prefab": null,
@@ -137,7 +140,7 @@
   },
   {
     "__type__": "cc.Node",
-    "_name": "Main Camera",
+    "_name": "BG",
     "_objFlags": 0,
     "_parent": {
       "__id__": 2
@@ -158,6 +161,100 @@
       "b": 255,
       "a": 255
     },
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 1080,
+      "height": 1920
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 0.5,
+      "y": 0.5
+    },
+    "_trs": {
+      "__type__": "TypedArray",
+      "ctor": "Float64Array",
+      "array": [
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        1,
+        1
+      ]
+    },
+    "_eulerAngles": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_skewX": 0,
+    "_skewY": 0,
+    "_is3DNode": false,
+    "_groupIndex": 0,
+    "groupIndex": 0,
+    "_id": "06rILMfyZEIrTaV20dN+IL"
+  },
+  {
+    "__type__": "cc.Sprite",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 3
+    },
+    "_enabled": true,
+    "_materials": [
+      {
+        "__uuid__": "eca5d2f2-8ef6-41c2-bbe6-f9c79d09c432"
+      }
+    ],
+    "_srcBlendFactor": 770,
+    "_dstBlendFactor": 771,
+    "_spriteFrame": {
+      "__uuid__": "7e492808-7fd3-4b8e-8e0d-4ab06fcee554"
+    },
+    "_type": 2,
+    "_sizeMode": 0,
+    "_fillType": 0,
+    "_fillCenter": {
+      "__type__": "cc.Vec2",
+      "x": 0,
+      "y": 0
+    },
+    "_fillStart": 0,
+    "_fillRange": 0,
+    "_isTrimmedMode": true,
+    "_atlas": null,
+    "_id": "d9uP1ksCZCaai71lia08yU"
+  },
+  {
+    "__type__": "cc.Node",
+    "_name": "Main Camera",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 2
+    },
+    "_children": [],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 6
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
     "_contentSize": {
       "__type__": "cc.Size",
       "width": 0,
@@ -202,7 +299,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 3
+      "__id__": 5
     },
     "_enabled": true,
     "_cullingMask": 4294967295,
@@ -244,10 +341,10 @@
     "_active": false,
     "_components": [
       {
-        "__id__": 6
+        "__id__": 8
       },
       {
-        "__id__": 7
+        "__id__": 9
       }
     ],
     "_prefab": null,
@@ -303,7 +400,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 5
+      "__id__": 7
     },
     "_enabled": true,
     "_url": "",
@@ -315,7 +412,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 5
+      "__id__": 7
     },
     "_enabled": true,
     "alignMode": 1,
@@ -392,7 +489,7 @@
     },
     "_enabled": true,
     "webview": {
-      "__id__": 6
+      "__id__": 8
     },
     "_id": "b3AScs1lVP7ruEGNmMEKXU"
   }
diff --git a/assets/Texture/BG.jpg b/assets/Texture/BG.jpg
new file mode 100644
index 0000000..8f1f536
Binary files /dev/null and b/assets/Texture/BG.jpg differ
diff --git a/assets/Texture/HelloWorld.png.meta b/assets/Texture/BG.jpg.meta
similarity index 62%
rename from assets/Texture/HelloWorld.png.meta
rename to assets/Texture/BG.jpg.meta
index eb65993..76ca60a 100644
--- a/assets/Texture/HelloWorld.png.meta
+++ b/assets/Texture/BG.jpg.meta
@@ -1,20 +1,20 @@
 {
   "ver": "2.3.5",
-  "uuid": "6aa0aa6a-ebee-4155-a088-a687a6aadec4",
+  "uuid": "e56254ca-0ee4-42ea-b69e-d2e57804a4f1",
   "type": "sprite",
   "wrapMode": "clamp",
   "filterMode": "bilinear",
   "premultiplyAlpha": false,
   "genMipmaps": false,
   "packable": true,
-  "width": 195,
-  "height": 270,
+  "width": 463,
+  "height": 260,
   "platformSettings": {},
   "subMetas": {
-    "HelloWorld": {
+    "BG": {
       "ver": "1.0.4",
-      "uuid": "31bc895a-c003-4566-a9f3-2e54ae1c17dc",
-      "rawTextureUuid": "6aa0aa6a-ebee-4155-a088-a687a6aadec4",
+      "uuid": "7e492808-7fd3-4b8e-8e0d-4ab06fcee554",
+      "rawTextureUuid": "e56254ca-0ee4-42ea-b69e-d2e57804a4f1",
       "trimType": "auto",
       "trimThreshold": 1,
       "rotated": false,
@@ -22,10 +22,10 @@
       "offsetY": 0,
       "trimX": 0,
       "trimY": 0,
-      "width": 195,
-      "height": 270,
-      "rawWidth": 195,
-      "rawHeight": 270,
+      "width": 463,
+      "height": 260,
+      "rawWidth": 463,
+      "rawHeight": 260,
       "borderTop": 0,
       "borderBottom": 0,
       "borderLeft": 0,
diff --git a/assets/Texture/HelloWorld.png b/assets/Texture/HelloWorld.png
deleted file mode 100644
index 21d4326..0000000
Binary files a/assets/Texture/HelloWorld.png and /dev/null differ