diff --git a/app/src/main/java/com/termux/x11/MainActivity.java b/app/src/main/java/com/termux/x11/MainActivity.java
index 196024fca..497e579bb 100644
--- a/app/src/main/java/com/termux/x11/MainActivity.java
+++ b/app/src/main/java/com/termux/x11/MainActivity.java
@@ -41,7 +41,8 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        if (didRequestLaunchExternalDisplay()) {
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
+        if (didRequestLaunchExternalDisplay() || preferences.getBoolean("fullscreen", true)) {
             setFullScreenForExternalDisplay();
         }
 
@@ -72,7 +73,8 @@ protected void onCreate(Bundle savedInstanceState) {
     @Override
     public void setTheme(int resId) {
         // for some reason, calling setTheme() in onCreate() wasn't working.
-        super.setTheme(didRequestLaunchExternalDisplay() ?
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
+        super.setTheme(didRequestLaunchExternalDisplay() || preferences.getBoolean("fullscreen", true) ?
                 R.style.FullScreen_ExternalDisplay : R.style.NoActionBar);
     }
 
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index 827577a94..0ea3bd103 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
-    
-    <CheckBoxPreference 
+
+    <CheckBoxPreference
 	android:title="Show additional keyboard"
         android:defaultValue="true"
         android:summary="Show keyboard with additional keys."
@@ -32,11 +32,16 @@
         android:key="PIP"
         android:summary="Show app in picture-in-picture mode when home button or recents button is pressed" />
 
+    <CheckBoxPreference
+        android:defaultValue="false"
+        android:key="fullscreen"
+        android:summary="Toggles immersive mode in your device display"
+        android:title="Fullscreen on device display" />
     <EditTextPreference
-	android:title="Custom XDG_RUNTIME_DIR"
-	android:defaultValue="/data/data/com.termux/files/usr/tmp"
-	android:key="CustXDG"
-	android:summary="Set the XDG runtime directory for wayland sockets"
-	android:dialogMessage="Changes to this preference will apply on app restart" />
+        android:title="Custom XDG_RUNTIME_DIR"
+        android:defaultValue="/data/data/com.termux/files/usr/tmp"
+        android:key="CustXDG"
+        android:summary="Set the XDG runtime directory for wayland sockets"
+        android:dialogMessage="Changes to this preference will apply on app restart" />
 
 </PreferenceScreen>