diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 53907537..3c62b7fc 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -141,6 +141,10 @@ android {
         }
     }
 
+    productFlavors.all {
+        resValue("string", "etc__default_shared_preferences_file_name", applicationId!! + "_preferences.xml")
+    }
+
     buildFeatures {
         viewBinding = true
         buildConfig = true
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index a2c15019..2fd64d02 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -28,6 +28,8 @@
     <application
         android:name=".Weechat"
         android:allowBackup="true"
+        android:fullBackupContent="@xml/backup_rules_for_api_30_and_below"
+        android:dataExtractionRules="@xml/backup_rules_for_api_31_and_above"
         android:icon="@mipmap/ic_launcher_kitty"
         android:label="@string/etc__application_name"
         android:theme="@style/Weechat"
diff --git a/app/src/main/res/xml/backup_rules_for_api_30_and_below.xml b/app/src/main/res/xml/backup_rules_for_api_30_and_below.xml
new file mode 100644
index 00000000..5c32ae97
--- /dev/null
+++ b/app/src/main/res/xml/backup_rules_for_api_30_and_below.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<full-backup-content>
+    <include domain="sharedpref" path="@etc__default_shared_preferences_file_name"/>
+    <include domain="external" path="themes"/>
+    <include domain="external" path="fonts"/>
+</full-backup-content>
\ No newline at end of file
diff --git a/app/src/main/res/xml/backup_rules_for_api_31_and_above.xml b/app/src/main/res/xml/backup_rules_for_api_31_and_above.xml
new file mode 100644
index 00000000..ecce96c7
--- /dev/null
+++ b/app/src/main/res/xml/backup_rules_for_api_31_and_above.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<data-extraction-rules>
+    <cloud-backup>
+        <include domain="sharedpref" path="@etc__default_shared_preferences_file_name"/>
+        <include domain="external" path="themes"/>
+        <include domain="external" path="fonts"/>
+    </cloud-backup>
+    <device-transfer>
+        <include domain="sharedpref" path="@etc__default_shared_preferences_file_name"/>
+        <include domain="external" path="themes"/>
+        <include domain="external" path="fonts"/>
+    </device-transfer>
+</data-extraction-rules>
\ No newline at end of file