diff --git a/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt b/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt
index a5e4fe2..295ff2d 100644
--- a/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt
+++ b/composeApp/src/androidMain/kotlin/mg/dot/feufaro/MainActivity.kt
@@ -1,5 +1,6 @@
 package mg.dot.feufaro
 
+import SharedScreenModel
 import android.Manifest
 import android.app.ComponentCaller
 import android.content.Intent
@@ -10,7 +11,9 @@ import android.os.Environment
 import android.util.Base64
 import android.view.View
 import android.view.WindowManager
+import android.widget.Toast
 import androidx.activity.ComponentActivity
+import androidx.activity.OnBackPressedCallback
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.runtime.Composable
@@ -22,11 +25,14 @@ import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.WindowInsetsControllerCompat
 import mg.dot.feufaro.ui.LocalFullscreenController
+import org.koin.android.ext.android.inject
 import org.koin.androidx.compose.KoinAndroidContext
 import java.io.File
 import java.util.zip.GZIPInputStream
 
 class MainActivity : ComponentActivity() {
+    private val sharedScreenModel: SharedScreenModel by inject()
+    private var lastBackTime = 0L
     override fun onCreate(savedInstanceState: Bundle?) {
         ActivityCompat.requestPermissions(
             this,
@@ -43,6 +49,27 @@ class MainActivity : ComponentActivity() {
         WindowCompat.setDecorFitsSystemWindows(window, false)
         intent?.let { handleDeepLinkIntent(it) }
 
+        onBackPressedDispatcher.addCallback(this, object : OnBackPressedCallback(true) {
+            override fun handleOnBackPressed() {
+                if (sharedScreenModel.sourceModeState.value) {
+                    sharedScreenModel.toggleSourceMode()
+                    return
+                }
+
+                val currentTime = System.currentTimeMillis()
+                if (currentTime - lastBackTime < 2000) {
+                    finish()
+                } else {
+                    lastBackTime = currentTime
+                    Toast.makeText(
+                        this@MainActivity,
+                        "Appuyez à nouveau pour quitter",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            }
+        })
+
 
         setContent {
             KoinAndroidContext {
@@ -65,7 +92,6 @@ class MainActivity : ComponentActivity() {
             windowInsetsController.show(WindowInsetsCompat.Type.statusBars())
             windowInsetsController.systemBarsBehavior =
                 WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
-            window.statusBarColor = android.graphics.Color.TRANSPARENT
 
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
                 window.attributes.layoutInDisplayCutoutMode =
diff --git a/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher.xml b/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher.xml
index 6f2acb4..bbd3e02 100644
--- a/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@mipmap/ic_launcher_background"/>
+    <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>
\ No newline at end of file
diff --git a/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher_round.xml b/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher_round.xml
index 6f2acb4..bbd3e02 100644
--- a/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/composeApp/src/androidMain/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@mipmap/ic_launcher_background"/>
+    <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>
\ No newline at end of file
diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
index c65b2ba..f70d1b1 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/solfa/TimeUnitObject.kt
@@ -44,6 +44,8 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.*
 import androidx.compose.ui.window.Popup
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import cafe.adriel.voyager.core.annotation.InternalVoyagerApi
+import cafe.adriel.voyager.navigator.internal.BackHandler
 import feufaro.composeapp.generated.resources.Emmentaler
 import feufaro.composeapp.generated.resources.PTSerif_Bold
 import feufaro.composeapp.generated.resources.PT_Serif_Bold_Italic
@@ -1421,12 +1423,17 @@ private suspend fun expandInclusions(
     return result.toString().trimEnd()
 }
 
+@OptIn(InternalVoyagerApi::class)
 @Composable
 fun EditSourceCompose(
     sharedScreenModel: SharedScreenModel,
     solfaScreenModel: SolfaScreenModel
 ) {
     var isEditorVisible = sharedScreenModel.sourceModeState.value
+    BackHandler(enabled = isEditorVisible) {
+        sharedScreenModel.toggleSourceMode()
+    }
+
     var sourcePath = sharedScreenModel.activeFilePath.value
     var sourceContent = sharedScreenModel.fileContent.value ?: ""
     var sourceTitle = sharedScreenModel.songTitle.value