diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a.png b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a_Dither.png
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a.png
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a_Dither.png
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a.png.meta b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a_Dither.png.meta
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a.png.meta
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_a_Dither.png.meta
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b.png b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b_Dither.png
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b.png
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b_Dither.png
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b.png.meta b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b_Dither.png.meta
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b.png.meta
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_b_Dither.png.meta
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c.png b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c_Dither.png
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c.png
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c_Dither.png
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c.png.meta b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c_Dither.png.meta
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c.png.meta
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_c_Dither.png.meta
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d.png b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d_Dither.png
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d.png
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d_Dither.png
diff --git a/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d.png.meta b/popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d_Dither.png.meta
similarity index 100%
rename from popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d.png.meta
rename to popcorn/Assets/MyGame/Resource/Material/Main/Main_background_cardboard_d_Dither.png.meta