diff --git a/ArkitDoushiQi/ArkitDoushiQi.xcodeproj/project.pbxproj b/ArkitDoushiQi/ArkitDoushiQi.xcodeproj/project.pbxproj
index a8927be..a6f65eb 100644
--- a/ArkitDoushiQi/ArkitDoushiQi.xcodeproj/project.pbxproj
+++ b/ArkitDoushiQi/ArkitDoushiQi.xcodeproj/project.pbxproj
@@ -9,6 +9,7 @@
 /* Begin PBXBuildFile section */
 		C20310D62BFCB5FB0031657D /* DoushiQiPicker.swift in Sources */ = {isa = PBXBuildFile; fileRef = C20310D52BFCB5FB0031657D /* DoushiQiPicker.swift */; };
 		C20310D82BFCC2410031657D /* ParametersMenuView.swift in Sources */ = {isa = PBXBuildFile; fileRef = C20310D72BFCC2410031657D /* ParametersMenuView.swift */; };
+		C20310DA2BFCC8600031657D /* ToggleView.swift in Sources */ = {isa = PBXBuildFile; fileRef = C20310D92BFCC8600031657D /* ToggleView.swift */; };
 		C205A2B72BF373360097BD93 /* ArkitDoushiQiApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = C205A2B62BF373360097BD93 /* ArkitDoushiQiApp.swift */; };
 		C205A2B92BF373360097BD93 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = C205A2B82BF373360097BD93 /* ContentView.swift */; };
 		C205A2BB2BF373380097BD93 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = C205A2BA2BF373380097BD93 /* Assets.xcassets */; };
@@ -40,6 +41,7 @@
 /* Begin PBXFileReference section */
 		C20310D52BFCB5FB0031657D /* DoushiQiPicker.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DoushiQiPicker.swift; sourceTree = "<group>"; };
 		C20310D72BFCC2410031657D /* ParametersMenuView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ParametersMenuView.swift; sourceTree = "<group>"; };
+		C20310D92BFCC8600031657D /* ToggleView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ToggleView.swift; sourceTree = "<group>"; };
 		C205A2B32BF373360097BD93 /* ArkitDoushiQi.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ArkitDoushiQi.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		C205A2B62BF373360097BD93 /* ArkitDoushiQiApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ArkitDoushiQiApp.swift; sourceTree = "<group>"; };
 		C205A2B82BF373360097BD93 /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
@@ -118,6 +120,7 @@
 				C24659E82BF60FAA004E80D5 /* MainMenuButton.swift */,
 				C20310D52BFCB5FB0031657D /* DoushiQiPicker.swift */,
 				C20310D72BFCC2410031657D /* ParametersMenuView.swift */,
+				C20310D92BFCC8600031657D /* ToggleView.swift */,
 			);
 			path = "Preview Content";
 			sourceTree = "<group>";
@@ -275,6 +278,7 @@
 				C20310D82BFCC2410031657D /* ParametersMenuView.swift in Sources */,
 				C205A2B72BF373360097BD93 /* ArkitDoushiQiApp.swift in Sources */,
 				C20310D62BFCB5FB0031657D /* DoushiQiPicker.swift in Sources */,
+				C20310DA2BFCC8600031657D /* ToggleView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/ArkitDoushiQi/ArkitDoushiQi/ArkitDoushiQiApp.swift b/ArkitDoushiQi/ArkitDoushiQi/ArkitDoushiQiApp.swift
index 61212e9..270b422 100644
--- a/ArkitDoushiQi/ArkitDoushiQi/ArkitDoushiQiApp.swift
+++ b/ArkitDoushiQi/ArkitDoushiQi/ArkitDoushiQiApp.swift
@@ -9,9 +9,11 @@ import SwiftUI
 
 @main
 struct ArkitDoushiQiApp: App {
-    var body: some Scene {
-        WindowGroup {
-            ContentView()
-        }
+    @AppStorage("isDarkMode") private var isDarkMode = false
+            var body: some Scene {
+                    WindowGroup {
+                     ContentView()
+                    .preferredColorScheme(isDarkMode ? .dark : .light)
+           }
     }
 }
diff --git a/ArkitDoushiQi/ArkitDoushiQi/Assets.xcassets/Color.colorset/Contents.json b/ArkitDoushiQi/ArkitDoushiQi/Assets.xcassets/Color.colorset/Contents.json
new file mode 100644
index 0000000..22c4bb0
--- /dev/null
+++ b/ArkitDoushiQi/ArkitDoushiQi/Assets.xcassets/Color.colorset/Contents.json
@@ -0,0 +1,38 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "1.000",
+          "green" : "1.000",
+          "red" : "1.000"
+        }
+      },
+      "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "1.000",
+          "green" : "1.000",
+          "red" : "1.000"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/ArkitDoushiQi/ArkitDoushiQi/Preview Content/MainMenu.swift b/ArkitDoushiQi/ArkitDoushiQi/Preview Content/MainMenu.swift
index 04a5596..155e55b 100644
--- a/ArkitDoushiQi/ArkitDoushiQi/Preview Content/MainMenu.swift	
+++ b/ArkitDoushiQi/ArkitDoushiQi/Preview Content/MainMenu.swift	
@@ -9,6 +9,7 @@ import SwiftUI
 
 struct MainMenu: View {
     @State private var action: Int? = 0
+    @AppStorage("isDarkMode") private var isDarkMode = false
     var body: some View {
         NavigationView {
             VStack {
diff --git a/ArkitDoushiQi/ArkitDoushiQi/Preview Content/ToggleView.swift b/ArkitDoushiQi/ArkitDoushiQi/Preview Content/ToggleView.swift
new file mode 100644
index 0000000..647a217
--- /dev/null
+++ b/ArkitDoushiQi/ArkitDoushiQi/Preview Content/ToggleView.swift	
@@ -0,0 +1,27 @@
+//
+//  ToggleView.swift
+//  ArkitDoushiQi
+//
+//  Created by Johan LACHENAL on 21/05/2024.
+//
+
+import SwiftUI
+
+struct ToggleView: View {
+    @AppStorage("isDarkMode") private var isDarkMode = false
+    var body: some View {
+       Divider().background(Color.gray).padding(.vertical, 1)
+          Toggle("Dark Mode", isOn: $isDarkMode)
+                .toggleStyle(SwitchToggleStyle(tint: .blue))
+                .padding(EdgeInsets(top: 0, leading: 32, bottom: 0, trailing: 32))
+        Divider().background(Color.gray).padding(.vertical, 1)
+    }
+}
+
+struct ToggleView_Previews: PreviewProvider {
+    static var previews: some View {
+        VStack{
+        ToggleView()
+        }
+    }
+}