diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index 8c4899d4..62d12f21 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -105,6 +105,11 @@
     <string name="other_prefs">Altro</string>
     <string name="app_language">Lingua</string>
     <string name="lang_english">Inglese</string>
-    <string name="lang_system_default">Predefinita del sistema</string>
+    <string name="system_default">Predefinita del sistema</string>
+    <string name="no_activity_file_selection">App di selezione file mancante</string>
+    <string name="file_saved_with_name">Il file %1$s è stato salvato correttamente</string>
+    <string name="theme_light">Chiaro</string>
+    <string name="theme_dark">Scuro</string>
+    <string name="app_theme">Tema</string>
 </resources>
 
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 552c91c4..a9c87e76 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -105,5 +105,5 @@
     <string name="other_prefs">Другое</string>
     <string name="app_language">Язык приложения</string>
     <string name="lang_english">Английский</string>
-    <string name="lang_system_default">Системный по-умолчанию</string>
+    <string name="system_default">Системный по-умолчанию</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 4967fac0..a5fc44c8 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -115,7 +115,7 @@
     <string name="other_prefs">其他</string>
     <string name="app_language">程序语言</string>
     <string name="lang_english">英语</string>
-    <string name="lang_system_default">系统默认</string>
+    <string name="system_default">系统默认</string>
     <string name="no_activity_file_selection">没有找到应用来处理选中的文件</string>
     <string name="file_saved_with_name">文件 %1$s 已成功保存</string>
     <string name="theme_light">浅色</string>
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index 29b77085..e05091ff 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -24,7 +24,7 @@
         <item>english</item>
     </string-array>
     <string-array name="app_languages_labels">
-        <item>@string/lang_system_default</item>
+        <item>@string/system_default</item>
         <item>@string/lang_english</item>
     </string-array>
 
@@ -34,7 +34,7 @@
         <item>dark</item>
     </string-array>
     <string-array name="app_theme_labels">
-        <item>@string/lang_system_default</item>
+        <item>@string/system_default</item>
         <item>@string/theme_light</item>
         <item>@string/theme_dark</item>
     </string-array>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 58c8e908..fd36c264 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -115,7 +115,7 @@
     <string name="other_prefs">Other</string>
     <string name="app_language">App Language</string>
     <string name="lang_english">English</string>
-    <string name="lang_system_default">System default</string>
+    <string name="system_default">System default</string>
     <string name="no_activity_file_selection">No app found to handle file selection</string>
     <string name="file_saved_with_name">File %1$s successfully saved</string>
     <string name="theme_light">Light</string>