diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11d5754..a6dae0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
-## Unreleased
-- Package speed up using Isolates to generate files at the same time
+## [2.3.1] - (2023-Jun-04)
+- Package speed up using Isolates to generate files at the same time. Thanks [Vladimir](https://github.com/vlazdra) for [PR #558](https://github.com/jonbhanson/flutter_native_splash/pull/558).
 - New command for generating all flavors at once: --flavors
+- Replaced deprecated 'flutter pub run' with 'dart run'. Thanks [Aditya](https://github.com/adityar224) for [PR #554](https://github.com/jonbhanson/flutter_native_splash/pull/554).
+- Fix fullscreen switch not working for Android <12v in System.dark mode. Fixes [#559](https://github.com/jonbhanson/flutter_native_splash/issues/559).
 
 ## [2.3.0] - (2023-May-15)
 - Support for GIFs in splash screen for web. Thanks [OutdatedGuy](https://github.com/OutdatedGuy) for [PR #547](https://github.com/jonbhanson/flutter_native_splash/pull/547).
diff --git a/README.md b/README.md
index c7802fe..d2a487f 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ First, add `flutter_native_splash` as a dependency in your pubspec.yaml file.
 
 ```yaml
 dependencies:
-  flutter_native_splash: ^2.3.0
+  flutter_native_splash: ^2.3.1
 ```
 
 Don't forget to `flutter pub get`.
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 256794e..bb7898f 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -116,7 +116,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "2.3.0"
+    version: "2.3.1"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -272,10 +272,10 @@ packages:
     dependency: transitive
     description:
       name: universal_io
-      sha256: "06866290206d196064fd61df4c7aea1ffe9a4e7c4ccaa8fcded42dd41948005d"
+      sha256: "1722b2dcc462b4b2f3ee7d188dad008b6eb4c40bbd03a3de451d82c78bba9aad"
       url: "https://pub.dev"
     source: hosted
-    version: "2.2.0"
+    version: "2.2.2"
   vector_math:
     dependency: transitive
     description:
diff --git a/lib/android.dart b/lib/android.dart
index 70078cf..3d90ec0 100644
--- a/lib/android.dart
+++ b/lib/android.dart
@@ -171,41 +171,25 @@ void _createAndroidSplash({
   }
 
   print('[Android] Updating styles...');
-  if (android12BackgroundColor != null ||
-      android12ImagePath != null ||
-      android12IconBackgroundColor != null ||
-      android12BrandingImagePath != null) {
-    _applyStylesXml(
-      fullScreen: fullscreen,
-      file: _flavorHelper.androidV31StylesFile,
-      template: _androidV31StylesXml,
-      android12BackgroundColor: android12BackgroundColor,
-      android12ImagePath: android12ImagePath,
-      android12IconBackgroundColor: android12IconBackgroundColor,
-      android12BrandingImagePath: android12BrandingImagePath,
-    );
-  } else {
-    File file = File(_flavorHelper.androidV31StylesFile);
-    if (file.existsSync()) file.deleteSync();
-  }
+  _applyStylesXml(
+    fullScreen: fullscreen,
+    file: _flavorHelper.androidV31StylesFile,
+    template: _androidV31StylesXml,
+    android12BackgroundColor: android12BackgroundColor,
+    android12ImagePath: android12ImagePath,
+    android12IconBackgroundColor: android12IconBackgroundColor,
+    android12BrandingImagePath: android12BrandingImagePath,
+  );
 
-  if (android12DarkBackgroundColor != null ||
-      android12DarkImagePath != null ||
-      darkAndroid12IconBackgroundColor != null ||
-      brandingDarkImagePath != null) {
-    _applyStylesXml(
-      fullScreen: fullscreen,
-      file: _flavorHelper.androidV31StylesNightFile,
-      template: _androidV31StylesNightXml,
-      android12BackgroundColor: android12DarkBackgroundColor,
-      android12ImagePath: android12DarkImagePath,
-      android12IconBackgroundColor: darkAndroid12IconBackgroundColor,
-      android12BrandingImagePath: android12DarkBrandingImagePath,
-    );
-  } else {
-    File file = File(_flavorHelper.androidV31StylesNightFile);
-    if (file.existsSync()) file.deleteSync();
-  }
+  _applyStylesXml(
+    fullScreen: fullscreen,
+    file: _flavorHelper.androidV31StylesNightFile,
+    template: _androidV31StylesNightXml,
+    android12BackgroundColor: android12DarkBackgroundColor,
+    android12ImagePath: android12DarkImagePath,
+    android12IconBackgroundColor: darkAndroid12IconBackgroundColor,
+    android12BrandingImagePath: android12DarkBrandingImagePath,
+  );
 
   _applyStylesXml(
     fullScreen: fullscreen,
@@ -213,13 +197,11 @@ void _createAndroidSplash({
     template: _androidStylesXml,
   );
 
-  if (darkColor != null || darkBackgroundImage != null) {
-    _applyStylesXml(
-      fullScreen: fullscreen,
-      file: _flavorHelper.androidNightStylesFile,
-      template: _androidStylesNightXml,
-    );
-  }
+  _applyStylesXml(
+    fullScreen: fullscreen,
+    file: _flavorHelper.androidNightStylesFile,
+    template: _androidStylesNightXml,
+  );
 
   _applyOrientation(orientation: screenOrientation);
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index ba10512..6f992ae 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: flutter_native_splash
 description: Customize Flutter's default white native splash screen with
   background color and splash image. Supports dark mode, full screen, and more.
-version: 2.3.0
+version: 2.3.1
 repository: https://github.com/jonbhanson/flutter_native_splash
 issue_tracker: https://github.com/jonbhanson/flutter_native_splash/issues
 
@@ -20,7 +20,7 @@ dependencies:
   image: ^4.0.17
   meta: ^1.9.1
   path: ^1.8.3
-  universal_io: ^2.2.0
+  universal_io: ^2.2.2
   xml: ^6.3.0
   yaml: ^3.1.2