diff --git a/Assets/arts/textures/background/bounty/bounty_bg_5.png b/Assets/arts/textures/background/bounty/bounty_bg_5.png
index 717113dd5..49950a464 100644
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diff --git a/Assets/arts/textures/background/common/evaluate_bg.png b/Assets/arts/textures/background/common/evaluate_bg.png
index a1fc0d006..6cf7d5e24 100644
Binary files a/Assets/arts/textures/background/common/evaluate_bg.png and b/Assets/arts/textures/background/common/evaluate_bg.png differ
diff --git a/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png b/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png
index 1d33c5f8b..89b29491a 100644
Binary files a/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png and b/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png differ
diff --git a/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png.meta b/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png.meta
index 2e65bfc22..292ddcd22 100644
--- a/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png.meta
+++ b/Assets/arts/textures/background/dungeon_armor/dungeon_armor_bg_2.png.meta
@@ -50,7 +50,7 @@ TextureImporter:
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   spriteGenerateFallbackPhysicsShape: 1
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+  alphaIsTransparency: 1
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@@ -99,6 +99,18 @@ TextureImporter:
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+  - serializedVersion: 3
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+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
   spriteSheet:
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     sprites: []
diff --git a/Assets/arts/textures/background/login/login_bg_1.png b/Assets/arts/textures/background/login/login_bg_1.png
index 3535a77de..2a086da72 100644
Binary files a/Assets/arts/textures/background/login/login_bg_1.png and b/Assets/arts/textures/background/login/login_bg_1.png differ
diff --git a/Assets/arts/textures/background/shop/shop_gift_banner_3.png b/Assets/arts/textures/background/shop/shop_gift_banner_3.png
index 9bb78ce2d..8fd72421b 100644
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diff --git a/Assets/arts/textures/background/shop/shop_gift_banner_3_1.png b/Assets/arts/textures/background/shop/shop_gift_banner_3_1.png
index 3e7c20d29..e15ee3e6a 100644
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diff --git a/Assets/arts/textures/background/shop/shop_gift_banner_4.png b/Assets/arts/textures/background/shop/shop_gift_banner_4.png
index 7e9902f95..45c95101d 100644
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diff --git a/Assets/arts/textures/background/shop/shop_gift_banner_4_1.png b/Assets/arts/textures/background/shop/shop_gift_banner_4_1.png
index c6270ae9f..be5320d7c 100644
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diff --git a/Assets/first/ui/login_bg.png b/Assets/first/ui/login_bg.png
index 3535a77de..2a086da72 100644
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