diff --git a/Assets/arts/textures/background/chapter/bg_1.png.meta b/Assets/arts/textures/background/chapter/bg_1.png.meta
index 62a5a7f73..fbe4b49ed 100644
--- a/Assets/arts/textures/background/chapter/bg_1.png.meta
+++ b/Assets/arts/textures/background/chapter/bg_1.png.meta
@@ -39,7 +39,7 @@ TextureImporter:
     wrapU: 1
     wrapV: 1
     wrapW: 1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
   spriteMode: 1
@@ -51,9 +51,9 @@ TextureImporter:
   spriteBorder: {x: 280, y: 620, z: 280, w: 886}
   spriteGenerateFallbackPhysicsShape: 1
   alphaUsage: 1
-  alphaIsTransparency: 1
+  alphaIsTransparency: 0
   spriteTessellationDetail: -1
-  textureType: 8
+  textureType: 0
   textureShape: 1
   singleChannelComponent: 0
   flipbookRows: 1
@@ -69,7 +69,7 @@ TextureImporter:
     buildTarget: Android
     maxTextureSize: 2048
     resizeAlgorithm: 0
-    textureFormat: 47
+    textureFormat: 45
     textureCompression: 0
     compressionQuality: 50
     crunchedCompression: 0
diff --git a/Assets/arts/textures/background/chapter/bg_2.png.meta b/Assets/arts/textures/background/chapter/bg_2.png.meta
index 6f251a02e..ac15fc1b7 100644
--- a/Assets/arts/textures/background/chapter/bg_2.png.meta
+++ b/Assets/arts/textures/background/chapter/bg_2.png.meta
@@ -39,7 +39,7 @@ TextureImporter:
     wrapU: 1
     wrapV: 1
     wrapW: 1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
   spriteMode: 1
@@ -51,9 +51,9 @@ TextureImporter:
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
   spriteGenerateFallbackPhysicsShape: 1
   alphaUsage: 1
-  alphaIsTransparency: 1
+  alphaIsTransparency: 0
   spriteTessellationDetail: -1
-  textureType: 8
+  textureType: 0
   textureShape: 1
   singleChannelComponent: 0
   flipbookRows: 1
@@ -69,7 +69,7 @@ TextureImporter:
     buildTarget: Android
     maxTextureSize: 2048
     resizeAlgorithm: 0
-    textureFormat: 47
+    textureFormat: 45
     textureCompression: 0
     compressionQuality: 50
     crunchedCompression: 0
diff --git a/Assets/arts/textures/background/chapter/bg_3.png.meta b/Assets/arts/textures/background/chapter/bg_3.png.meta
index 2b81fc722..9f03f50aa 100644
--- a/Assets/arts/textures/background/chapter/bg_3.png.meta
+++ b/Assets/arts/textures/background/chapter/bg_3.png.meta
@@ -39,7 +39,7 @@ TextureImporter:
     wrapU: 1
     wrapV: 1
     wrapW: 1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
   spriteMode: 1
@@ -51,9 +51,9 @@ TextureImporter:
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
   spriteGenerateFallbackPhysicsShape: 1
   alphaUsage: 1
-  alphaIsTransparency: 1
+  alphaIsTransparency: 0
   spriteTessellationDetail: -1
-  textureType: 8
+  textureType: 0
   textureShape: 1
   singleChannelComponent: 0
   flipbookRows: 1
@@ -69,7 +69,7 @@ TextureImporter:
     buildTarget: Android
     maxTextureSize: 2048
     resizeAlgorithm: 0
-    textureFormat: 47
+    textureFormat: 45
     textureCompression: 0
     compressionQuality: 50
     crunchedCompression: 0
diff --git a/Assets/arts/textures/background/chapter/bg_4.png.meta b/Assets/arts/textures/background/chapter/bg_4.png.meta
index 10a48b747..be44e21ee 100644
--- a/Assets/arts/textures/background/chapter/bg_4.png.meta
+++ b/Assets/arts/textures/background/chapter/bg_4.png.meta
@@ -39,7 +39,7 @@ TextureImporter:
     wrapU: 1
     wrapV: 1
     wrapW: 1
-  nPOTScale: 0
+  nPOTScale: 1
   lightmap: 0
   compressionQuality: 50
   spriteMode: 1
@@ -51,9 +51,9 @@ TextureImporter:
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
   spriteGenerateFallbackPhysicsShape: 1
   alphaUsage: 1
-  alphaIsTransparency: 1
+  alphaIsTransparency: 0
   spriteTessellationDetail: -1
-  textureType: 8
+  textureType: 0
   textureShape: 1
   singleChannelComponent: 0
   flipbookRows: 1
@@ -69,7 +69,7 @@ TextureImporter:
     buildTarget: Android
     maxTextureSize: 2048
     resizeAlgorithm: 0
-    textureFormat: 47
+    textureFormat: 45
     textureCompression: 0
     compressionQuality: 50
     crunchedCompression: 0