diff --git a/common/src/main/java/moe/caramel/mica/ModConfig.java b/common/src/main/java/moe/caramel/mica/ModConfig.java
index 5e6799a..573f161 100644
--- a/common/src/main/java/moe/caramel/mica/ModConfig.java
+++ b/common/src/main/java/moe/caramel/mica/ModConfig.java
@@ -1,5 +1,6 @@
 package moe.caramel.mica;
 
+import com.mojang.blaze3d.platform.Window;
 import moe.caramel.mica.natives.DwmApi;
 import net.minecraft.client.Minecraft;
 import net.minecraft.core.RegistryAccess;
@@ -104,6 +105,7 @@ public <T> void setConfig(Settings<ModConfig>.MutableValue<T> config, T value) {
     }
 
     public static void update() {
-        DwmApi.updateDwm(Minecraft.getInstance().getWindow().getWindow());
+        final Window window = Minecraft.getInstance().getWindow();
+        DwmApi.updateDwm(window.isFullscreen(), window.getWindow());
     }
 }
diff --git a/common/src/main/java/moe/caramel/mica/mixin/MixinWindow.java b/common/src/main/java/moe/caramel/mica/mixin/MixinWindow.java
index b09221b..d8a97d7 100644
--- a/common/src/main/java/moe/caramel/mica/mixin/MixinWindow.java
+++ b/common/src/main/java/moe/caramel/mica/mixin/MixinWindow.java
@@ -18,6 +18,7 @@
 public final class MixinWindow {
 
     @Shadow @Final private long window;
+    @Shadow private boolean fullscreen;
 
     @Inject(method = "<init>", at = @At(value = "TAIL"))
     private void init(
@@ -32,6 +33,17 @@ private void init(
 
         // Initialize Mica
         NtDll.getBuildNumber();
-        DwmApi.updateDwm(this.window);
+        DwmApi.updateDwm(this.fullscreen, this.window);
+    }
+
+    @Inject(method = "updateFullscreen", at = @At(value = "TAIL"))
+    private void updateFullscreen(final boolean vsync, final CallbackInfo ci) {
+        // Check OS
+        if (Util.getPlatform() != Util.OS.WINDOWS) {
+            return;
+        }
+
+        // Update DWM
+        DwmApi.updateDwm(this.fullscreen, this.window);
     }
 }
diff --git a/common/src/main/java/moe/caramel/mica/natives/DwmApi.java b/common/src/main/java/moe/caramel/mica/natives/DwmApi.java
index 8344878..0d54294 100644
--- a/common/src/main/java/moe/caramel/mica/natives/DwmApi.java
+++ b/common/src/main/java/moe/caramel/mica/natives/DwmApi.java
@@ -72,13 +72,18 @@ int DwmSetWindowAttribute(
         int cbAttribute
     );
 
-    static void updateDwm(final long window) {
+    static void updateDwm(final boolean fullscreen, final long window) {
         // Check build number
         if (!Mica.checkCompatibility()) {
             return;
         }
 
         final HWND hwnd = new HWND(Pointer.createConstant(GLFWNativeWin32.glfwGetWin32Window(window)));
+        if (fullscreen) {
+            DwmApi.disableWindowEffect(hwnd);
+            return;
+        }
+
         final ModConfig config = ModConfig.get();
 
         // DWMWA_USE_IMMERSIVE_DARK_MODE
@@ -122,6 +127,17 @@ static void updateDwm(final long window) {
         }
     }
 
+    static void disableWindowEffect(final HWND hwnd) {
+        // ... DWMWA_USE_IMMERSIVE_DARK_MODE
+        if (Mica.buildNumber >= Mica.BACKDROP_BUILD_NUM) {
+            INSTANCE.DwmSetWindowAttribute(hwnd, DWMWA_SYSTEMBACKDROP_TYPE, new IntByReference(DWM_SYSTEMBACKDROP_TYPE.DWMSBT_AUTO.ordinal()), INT_SIZE);
+        }
+        INSTANCE.DwmSetWindowAttribute(hwnd, DWMWA_WINDOW_CORNER_PREFERENCE, new IntByReference(DWM_WINDOW_CORNER_PREFERENCE.DWMWCP_DEFAULT.ordinal()), INT_SIZE);
+        INSTANCE.DwmSetWindowAttribute(hwnd, DWMWA_BORDER_COLOR, new IntByReference(DWMWA_COLOR_DEFAULT), INT_SIZE);
+        INSTANCE.DwmSetWindowAttribute(hwnd, DWMWA_CAPTION_COLOR, new IntByReference(DWMWA_COLOR_DEFAULT), INT_SIZE);
+        INSTANCE.DwmSetWindowAttribute(hwnd, DWMWA_TEXT_COLOR, new IntByReference(DWMWA_COLOR_DEFAULT), INT_SIZE);
+    }
+
     private static int convert(final int color) {
         // Ignore Alpha
         final int b = (color >> 16) & 0xFF;