diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_chear.png b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_chear.png
index 5a3a2b55..28faf490 100644
Binary files a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_chear.png and b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_chear.png differ
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_desk_Dither.png b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_desk_Dither.png
index b731ddc9..ee5c7f23 100644
Binary files a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_desk_Dither.png and b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_desk_Dither.png differ
diff --git a/popcorn/Assets/MyGame/Scenes/Main/Main.unity b/popcorn/Assets/MyGame/Scenes/Main/Main.unity
index dcb4cc0b..30210cf2 100644
--- a/popcorn/Assets/MyGame/Scenes/Main/Main.unity
+++ b/popcorn/Assets/MyGame/Scenes/Main/Main.unity
@@ -1590,7 +1590,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 590848656}
   m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
-  m_LocalPosition: {x: 0, y: -5.06, z: 0}
+  m_LocalPosition: {x: 0.11, y: -5.06, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children:
   - {fileID: 1796633949}
@@ -2530,7 +2530,7 @@ GameObject:
   - component: {fileID: 1036488658}
   - component: {fileID: 1036488659}
   m_Layer: 0
-  m_Name: Main_background_chear (1)
+  m_Name: Chair_r
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
@@ -2544,7 +2544,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1036488657}
   m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
-  m_LocalPosition: {x: 2.68, y: 2.16, z: 0}
+  m_LocalPosition: {x: 2.93, y: 2.16, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 590848657}
@@ -3902,7 +3902,7 @@ GameObject:
   - component: {fileID: 1719419317}
   - component: {fileID: 1719419318}
   m_Layer: 0
-  m_Name: New Sprite
+  m_Name: shadow
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
@@ -3916,7 +3916,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1719419316}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: -0.03, y: -0.98, z: 0}
+  m_LocalPosition: {x: 0.01, y: -1.18, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 590848657}
@@ -3962,7 +3962,7 @@ SpriteRenderer:
   m_SortingLayer: 0
   m_SortingOrder: -32
   m_Sprite: {fileID: 21300000, guid: 80d1c9e9b326898458982e5863f94bee, type: 3}
-  m_Color: {r: 0.2264151, g: 0.05889301, b: 0, a: 0.050980393}
+  m_Color: {r: 0.2264151, g: 0.05889301, b: 0, a: 0.078431375}
   m_FlipX: 0
   m_FlipY: 0
   m_DrawMode: 1
@@ -4113,7 +4113,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1796633948}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: -6.38, y: -0.41, z: 0}
+  m_LocalPosition: {x: -6.49, y: -0.41, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 590848657}
@@ -4415,7 +4415,7 @@ GameObject:
   - component: {fileID: 1850158121}
   - component: {fileID: 1850158122}
   m_Layer: 0
-  m_Name: Main_background_chear
+  m_Name: Chair_l
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
@@ -4429,7 +4429,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1850158120}
   m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
-  m_LocalPosition: {x: -2.894, y: 2.34, z: 0}
+  m_LocalPosition: {x: -3.03, y: 2.34, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 590848657}