diff --git a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
index 479364ff14a7..caee5f7cb75a 100644
--- a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
+++ b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.5.0
+
+* Adds an option to set the background color of the webview.
+
 ## 2.4.0
 
 * Adds support for Android's `WebView.loadData` and `WebView.loadDataWithBaseUrl` methods and implements the `loadFile` and `loadHtmlString` methods from the platform interface.
@@ -27,13 +31,12 @@ when it is created without Hybrid Composition.
 
 ## 2.0.15
 
-* Added Overrides in  FlutterWebView.java 
-  
+* Added Overrides in  FlutterWebView.java
+
 ## 2.0.14
 
-* Update example App so navigation menu loads immediatly but only becomes available when `WebViewController` is available (same behavior as example App in webview_flutter package). 
+* Update example App so navigation menu loads immediatly but only becomes available when `WebViewController` is available (same behavior as example App in webview_flutter package).
 
 ## 2.0.13
 
 * Extract Android implementation from `webview_flutter`.
-
diff --git a/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/GeneratedAndroidWebView.java b/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/GeneratedAndroidWebView.java
index beb2d7105f22..a5632d351f83 100644
--- a/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/GeneratedAndroidWebView.java
+++ b/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/GeneratedAndroidWebView.java
@@ -223,6 +223,8 @@ void loadDataWithBaseUrl(
 
     void setWebChromeClient(Long instanceId, Long clientInstanceId);
 
+    void setBackgroundColor(Long instanceId, Long color);
+
     /** The codec used by WebViewHostApi. */
     static MessageCodec<Object> getCodec() {
       return WebViewHostApiCodec.INSTANCE;
@@ -958,6 +960,37 @@ public void error(Throwable error) {
           channel.setMessageHandler(null);
         }
       }
+      {
+        BasicMessageChannel<Object> channel =
+            new BasicMessageChannel<>(
+                binaryMessenger,
+                "dev.flutter.pigeon.WebViewHostApi.setBackgroundColor",
+                getCodec());
+        if (api != null) {
+          channel.setMessageHandler(
+              (message, reply) -> {
+                Map<String, Object> wrapped = new HashMap<>();
+                try {
+                  ArrayList<Object> args = (ArrayList<Object>) message;
+                  Number instanceIdArg = (Number) args.get(0);
+                  if (instanceIdArg == null) {
+                    throw new NullPointerException("instanceIdArg unexpectedly null.");
+                  }
+                  Number colorArg = (Number) args.get(1);
+                  if (colorArg == null) {
+                    throw new NullPointerException("colorArg unexpectedly null.");
+                  }
+                  api.setBackgroundColor(instanceIdArg.longValue(), colorArg.longValue());
+                  wrapped.put("result", null);
+                } catch (Error | RuntimeException exception) {
+                  wrapped.put("error", wrapError(exception));
+                }
+                reply.reply(wrapped);
+              });
+        } else {
+          channel.setMessageHandler(null);
+        }
+      }
     }
   }
 
diff --git a/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/WebViewHostApiImpl.java b/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/WebViewHostApiImpl.java
index b557e9889704..78b06aac90b1 100644
--- a/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/WebViewHostApiImpl.java
+++ b/packages/webview_flutter/webview_flutter_android/android/src/main/java/io/flutter/plugins/webviewflutter/WebViewHostApiImpl.java
@@ -502,6 +502,12 @@ public void setWebChromeClient(Long instanceId, Long clientInstanceId) {
     webView.setWebChromeClient((WebChromeClient) instanceManager.getInstance(clientInstanceId));
   }
 
+  @Override
+  public void setBackgroundColor(Long instanceId, Long color) {
+    final WebView webView = (WebView) instanceManager.getInstance(instanceId);
+    webView.setBackgroundColor(color.intValue());
+  }
+
   @Nullable
   private static String parseNullStringIdentifier(String value) {
     if (value.equals(nullStringIdentifier)) {
diff --git a/packages/webview_flutter/webview_flutter_android/example/android/app/src/androidTest/java/io/flutter/plugins/webviewflutterexample/BackgroundColorTest.java b/packages/webview_flutter/webview_flutter_android/example/android/app/src/androidTest/java/io/flutter/plugins/webviewflutterexample/BackgroundColorTest.java
new file mode 100644
index 000000000000..a63629e0b9e2
--- /dev/null
+++ b/packages/webview_flutter/webview_flutter_android/example/android/app/src/androidTest/java/io/flutter/plugins/webviewflutterexample/BackgroundColorTest.java
@@ -0,0 +1,61 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package io.flutter.plugins.webviewflutterexample;
+
+import static androidx.test.espresso.flutter.EspressoFlutter.onFlutterWidget;
+import static androidx.test.espresso.flutter.action.FlutterActions.click;
+import static androidx.test.espresso.flutter.matcher.FlutterMatchers.withText;
+import static androidx.test.espresso.flutter.matcher.FlutterMatchers.withValueKey;
+import static org.junit.Assert.assertEquals;
+
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import androidx.test.core.app.ActivityScenario;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.rule.ActivityTestRule;
+import androidx.test.runner.screenshot.ScreenCapture;
+import androidx.test.runner.screenshot.Screenshot;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class BackgroundColorTest {
+  @Rule
+  public ActivityTestRule<DriverExtensionActivity> myActivityTestRule =
+      new ActivityTestRule<>(DriverExtensionActivity.class, true, false);
+
+  @Before
+  public void setUp() {
+    ActivityScenario.launch(DriverExtensionActivity.class);
+  }
+
+  @Ignore("Doesn't run in Firebase Test Lab: https://github.com/flutter/flutter/issues/94748")
+  @Test
+  public void backgroundColor() {
+    onFlutterWidget(withValueKey("ShowPopupMenu")).perform(click());
+    onFlutterWidget(withValueKey("ShowTransparentBackgroundExample")).perform(click());
+    onFlutterWidget(withText("Transparent background test"));
+
+    final ScreenCapture screenCapture = Screenshot.capture();
+    final Bitmap screenBitmap = screenCapture.getBitmap();
+
+    final int centerLeftColor =
+        screenBitmap.getPixel(10, (int) Math.floor(screenBitmap.getHeight() / 2.0));
+    final int centerColor =
+        screenBitmap.getPixel(
+            (int) Math.floor(screenBitmap.getWidth() / 2.0),
+            (int) Math.floor(screenBitmap.getHeight() / 2.0));
+
+    // Flutter Colors.green color : 0xFF4CAF50
+    // https://github.com/flutter/flutter/blob/f4abaa0735eba4dfd8f33f73363911d63931fe03/packages/flutter/lib/src/material/colors.dart#L1208
+    // The background color of the webview is : rgba(0, 0, 0, 0.5)
+    // The expected color is : rgba(38, 87, 40, 1) -> 0xFF265728
+    assertEquals(0xFF265728, centerLeftColor);
+    assertEquals(Color.RED, centerColor);
+  }
+}
diff --git a/packages/webview_flutter/webview_flutter_android/example/android/app/src/debug/AndroidManifest.xml b/packages/webview_flutter/webview_flutter_android/example/android/app/src/debug/AndroidManifest.xml
index 28792201bc36..110b9abe1cd8 100644
--- a/packages/webview_flutter/webview_flutter_android/example/android/app/src/debug/AndroidManifest.xml
+++ b/packages/webview_flutter/webview_flutter_android/example/android/app/src/debug/AndroidManifest.xml
@@ -13,5 +13,13 @@
             android:hardwareAccelerated="true"
             android:windowSoftInputMode="adjustResize">
         </activity>
+        <activity
+                android:name=".DriverExtensionActivity"
+                android:launchMode="singleTop"
+                android:theme="@style/LaunchTheme"
+                android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+                android:hardwareAccelerated="true"
+                android:windowSoftInputMode="adjustResize">
+        </activity>
     </application>
 </manifest>
diff --git a/packages/webview_flutter/webview_flutter_android/example/android/app/src/main/java/io/flutter/plugins/webviewflutterexample/DriverExtensionActivity.java b/packages/webview_flutter/webview_flutter_android/example/android/app/src/main/java/io/flutter/plugins/webviewflutterexample/DriverExtensionActivity.java
new file mode 100644
index 000000000000..59e1b04c37f2
--- /dev/null
+++ b/packages/webview_flutter/webview_flutter_android/example/android/app/src/main/java/io/flutter/plugins/webviewflutterexample/DriverExtensionActivity.java
@@ -0,0 +1,16 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package io.flutter.plugins.webviewflutterexample;
+
+import androidx.annotation.NonNull;
+import io.flutter.embedding.android.FlutterActivity;
+
+public class DriverExtensionActivity extends FlutterActivity {
+  @Override
+  @NonNull
+  public String getDartEntrypointFunctionName() {
+    return "appMain";
+  }
+}
diff --git a/packages/webview_flutter/webview_flutter_android/example/lib/main.dart b/packages/webview_flutter/webview_flutter_android/example/lib/main.dart
index bc43c16d4498..0c04c8ca4004 100644
--- a/packages/webview_flutter/webview_flutter_android/example/lib/main.dart
+++ b/packages/webview_flutter/webview_flutter_android/example/lib/main.dart
@@ -9,6 +9,7 @@ import 'dart:convert';
 import 'dart:io';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_driver/driver_extension.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:webview_flutter_android/webview_surface_android.dart';
 import 'package:webview_flutter_platform_interface/webview_flutter_platform_interface.dart';
@@ -17,6 +18,11 @@ import 'navigation_decision.dart';
 import 'navigation_request.dart';
 import 'web_view.dart';
 
+void appMain() {
+  enableFlutterDriverExtension();
+  main();
+}
+
 void main() {
   // Configure the [WebView] to use the [SurfaceAndroidWebView]
   // implementation instead of the default [AndroidWebView].
@@ -59,6 +65,27 @@ const String kExamplePage = '''
 </html>
 ''';
 
+const String kTransparentBackgroundPage = '''
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Transparent background test</title>
+</head>
+<style type="text/css">
+  body { background: transparent; margin: 0; padding: 0; }
+  #container { position: relative; margin: 0; padding: 0; width: 100vw; height: 100vh; }
+  #shape { background: #FF0000; width: 200px; height: 100%; margin: 0; padding: 0; position: absolute; top: 0; bottom: 0; left: calc(50% - 100px); }
+  p { text-align: center; }
+</style>
+<body>
+  <div id="container">
+    <p>Transparent background test</p>
+    <div id="shape"></div>
+  </div>
+</body>
+</html>
+''';
+
 class _WebViewExample extends StatefulWidget {
   const _WebViewExample({Key? key}) : super(key: key);
 
@@ -73,6 +100,7 @@ class _WebViewExampleState extends State<_WebViewExample> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+      backgroundColor: const Color(0xFF4CAF50),
       appBar: AppBar(
         title: const Text('Flutter WebView example'),
         // This drop down menu demonstrates that Flutter widgets can be shown over the web view.
@@ -109,6 +137,7 @@ class _WebViewExampleState extends State<_WebViewExample> {
           javascriptChannels: _createJavascriptChannels(context),
           javascriptMode: JavascriptMode.unrestricted,
           userAgent: 'Custom_User_Agent',
+          backgroundColor: const Color(0x80000000),
         );
       }),
       floatingActionButton: favoriteButton(),
@@ -158,6 +187,7 @@ enum _MenuOptions {
   navigationDelegate,
   loadLocalFile,
   loadHtmlString,
+  transparentBackground,
 }
 
 class _SampleMenu extends StatelessWidget {
@@ -172,6 +202,7 @@ class _SampleMenu extends StatelessWidget {
       builder:
           (BuildContext context, AsyncSnapshot<WebViewController> controller) {
         return PopupMenuButton<_MenuOptions>(
+          key: const ValueKey<String>('ShowPopupMenu'),
           onSelected: (_MenuOptions value) {
             switch (value) {
               case _MenuOptions.showUserAgent:
@@ -201,6 +232,9 @@ class _SampleMenu extends StatelessWidget {
               case _MenuOptions.loadHtmlString:
                 _onLoadHtmlStringExample(controller.data!, context);
                 break;
+              case _MenuOptions.transparentBackground:
+                _onTransparentBackground(controller.data!, context);
+                break;
             }
           },
           itemBuilder: (BuildContext context) => <PopupMenuItem<_MenuOptions>>[
@@ -241,6 +275,11 @@ class _SampleMenu extends StatelessWidget {
               value: _MenuOptions.loadLocalFile,
               child: Text('Load local file'),
             ),
+            const PopupMenuItem<_MenuOptions>(
+              key: ValueKey<String>('ShowTransparentBackgroundExample'),
+              value: _MenuOptions.transparentBackground,
+              child: Text('Transparent background example'),
+            ),
           ],
         );
       },
@@ -353,6 +392,11 @@ class _SampleMenu extends StatelessWidget {
 
     return indexFile.path;
   }
+
+  Future<void> _onTransparentBackground(
+      WebViewController controller, BuildContext context) async {
+    await controller.loadHtmlString(kTransparentBackgroundPage);
+  }
 }
 
 class _NavigationControls extends StatelessWidget {
diff --git a/packages/webview_flutter/webview_flutter_android/example/lib/web_view.dart b/packages/webview_flutter/webview_flutter_android/example/lib/web_view.dart
index 654abbd960cd..395966bdd744 100644
--- a/packages/webview_flutter/webview_flutter_android/example/lib/web_view.dart
+++ b/packages/webview_flutter/webview_flutter_android/example/lib/web_view.dart
@@ -76,6 +76,7 @@ class WebView extends StatefulWidget {
     this.initialMediaPlaybackPolicy =
         AutoMediaPlaybackPolicy.require_user_action_for_all_media_types,
     this.allowsInlineMediaPlayback = false,
+    this.backgroundColor,
   })  : assert(javascriptMode != null),
         assert(initialMediaPlaybackPolicy != null),
         assert(allowsInlineMediaPlayback != null),
@@ -236,6 +237,12 @@ class WebView extends StatefulWidget {
   /// The default policy is [AutoMediaPlaybackPolicy.require_user_action_for_all_media_types].
   final AutoMediaPlaybackPolicy initialMediaPlaybackPolicy;
 
+  /// The background color of the [WebView].
+  ///
+  /// When `null` the platform's webview default background color is used. By
+  /// default [backgroundColor] is `null`.
+  final Color? backgroundColor;
+
   @override
   _WebViewState createState() => _WebViewState();
 }
@@ -287,6 +294,7 @@ class _WebViewState extends State<WebView> {
             _javascriptChannelRegistry.channels.keys.toSet(),
         autoMediaPlaybackPolicy: widget.initialMediaPlaybackPolicy,
         userAgent: widget.userAgent,
+        backgroundColor: widget.backgroundColor,
       ),
       javascriptChannelRegistry: _javascriptChannelRegistry,
     );
diff --git a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart
index 928cdb3099f1..ecd6f33d1e63 100644
--- a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart
+++ b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:ui';
+
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart' show AndroidViewSurface;
 
@@ -349,6 +351,11 @@ class WebView {
     return api.setWebChromeClientFromInstance(this, client);
   }
 
+  /// Sets the background color of this WebView.
+  Future<void> setBackgroundColor(Color color) {
+    return api.setBackgroundColorFromInstance(this, color.value);
+  }
+
   /// Releases all resources used by the [WebView].
   ///
   /// Any methods called after [release] will throw an exception.
diff --git a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.pigeon.dart b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.pigeon.dart
index 9bf2de6d169b..ae528a64bb8f 100644
--- a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.pigeon.dart
+++ b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.pigeon.dart
@@ -708,6 +708,31 @@ class WebViewHostApi {
       return;
     }
   }
+
+  Future<void> setBackgroundColor(int arg_instanceId, int arg_color) async {
+    final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
+        'dev.flutter.pigeon.WebViewHostApi.setBackgroundColor', codec,
+        binaryMessenger: _binaryMessenger);
+    final Map<Object?, Object?>? replyMap = await channel
+        .send(<Object>[arg_instanceId, arg_color]) as Map<Object?, Object?>?;
+    if (replyMap == null) {
+      throw PlatformException(
+        code: 'channel-error',
+        message: 'Unable to establish connection on channel.',
+        details: null,
+      );
+    } else if (replyMap['error'] != null) {
+      final Map<Object?, Object?> error =
+          (replyMap['error'] as Map<Object?, Object?>?)!;
+      throw PlatformException(
+        code: (error['code'] as String?)!,
+        message: error['message'] as String?,
+        details: error['details'],
+      );
+    } else {
+      return;
+    }
+  }
 }
 
 class _WebSettingsHostApiCodec extends StandardMessageCodec {
diff --git a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview_api_impls.dart b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview_api_impls.dart
index ece05b56c182..51efdaadebdc 100644
--- a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview_api_impls.dart
+++ b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview_api_impls.dart
@@ -278,6 +278,11 @@ class WebViewHostApiImpl extends WebViewHostApi {
       instanceManager.getInstanceId(client)!,
     );
   }
+
+  /// Helper method to convert instances ids to objects.
+  Future<void> setBackgroundColorFromInstance(WebView instance, int color) {
+    return setBackgroundColor(instanceManager.getInstanceId(instance)!, color);
+  }
 }
 
 /// Host api implementation for [WebSettings].
diff --git a/packages/webview_flutter/webview_flutter_android/lib/webview_android_widget.dart b/packages/webview_flutter/webview_flutter_android/lib/webview_android_widget.dart
index c264bc1b9e6e..0bfa04fde095 100644
--- a/packages/webview_flutter/webview_flutter_android/lib/webview_android_widget.dart
+++ b/packages/webview_flutter/webview_flutter_android/lib/webview_android_widget.dart
@@ -298,6 +298,11 @@ class WebViewAndroidPlatformController extends WebViewPlatformController {
           AutoMediaPlaybackPolicy.always_allow,
     );
 
+    final Color? backgroundColor = creationParams.backgroundColor;
+    if (backgroundColor != null) {
+      webView.setBackgroundColor(backgroundColor);
+    }
+
     addJavascriptChannels(creationParams.javascriptChannelNames);
   }
 
diff --git a/packages/webview_flutter/webview_flutter_android/pigeons/android_webview.dart b/packages/webview_flutter/webview_flutter_android/pigeons/android_webview.dart
index 963216329237..0fdec2c17756 100644
--- a/packages/webview_flutter/webview_flutter_android/pigeons/android_webview.dart
+++ b/packages/webview_flutter/webview_flutter_android/pigeons/android_webview.dart
@@ -87,6 +87,8 @@ abstract class WebViewHostApi {
   void setDownloadListener(int instanceId, int listenerInstanceId);
 
   void setWebChromeClient(int instanceId, int clientInstanceId);
+
+  void setBackgroundColor(int instanceId, int color);
 }
 
 @HostApi(dartHostTestHandler: 'TestWebSettingsHostApi')
diff --git a/packages/webview_flutter/webview_flutter_android/pubspec.yaml b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
index 8889469920df..75245a31e4c2 100644
--- a/packages/webview_flutter/webview_flutter_android/pubspec.yaml
+++ b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: webview_flutter_android
 description: A Flutter plugin that provides a WebView widget on Android.
 repository: https://github.com/flutter/plugins/tree/master/packages/webview_flutter/webview_flutter_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 2.4.0
+version: 2.5.0
 
 environment:
   sdk: ">=2.14.0 <3.0.0"
@@ -19,7 +19,7 @@ flutter:
 dependencies:
   flutter:
     sdk: flutter
-  webview_flutter_platform_interface: ^1.5.2
+  webview_flutter_platform_interface: ^1.7.0
 
 dev_dependencies:
   build_runner: ^2.1.4
@@ -30,4 +30,3 @@ dev_dependencies:
   mockito: ^5.0.16
   pedantic: ^1.10.0
   pigeon: 1.0.9
-
diff --git a/packages/webview_flutter/webview_flutter_android/test/android_webview.pigeon.dart b/packages/webview_flutter/webview_flutter_android/test/android_webview.pigeon.dart
index 45988a0ae441..942e59a0b2b3 100644
--- a/packages/webview_flutter/webview_flutter_android/test/android_webview.pigeon.dart
+++ b/packages/webview_flutter/webview_flutter_android/test/android_webview.pigeon.dart
@@ -4,7 +4,7 @@
 
 // Autogenerated from Pigeon (v1.0.9), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
-// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import, avoid_relative_lib_imports, unnecessary_parenthesis
+// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import
 // @dart = 2.12
 import 'dart:async';
 import 'dart:typed_data' show Uint8List, Int32List, Int64List, Float64List;
@@ -46,6 +46,7 @@ abstract class TestWebViewHostApi {
   void removeJavaScriptChannel(int instanceId, int javaScriptChannelInstanceId);
   void setDownloadListener(int instanceId, int listenerInstanceId);
   void setWebChromeClient(int instanceId, int clientInstanceId);
+  void setBackgroundColor(int instanceId, int color);
   static void setup(TestWebViewHostApi? api,
       {BinaryMessenger? binaryMessenger}) {
     {
@@ -577,6 +578,28 @@ abstract class TestWebViewHostApi {
         });
       }
     }
+    {
+      final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
+          'dev.flutter.pigeon.WebViewHostApi.setBackgroundColor', codec,
+          binaryMessenger: binaryMessenger);
+      if (api == null) {
+        channel.setMockMessageHandler(null);
+      } else {
+        channel.setMockMessageHandler((Object? message) async {
+          assert(message != null,
+              'Argument for dev.flutter.pigeon.WebViewHostApi.setBackgroundColor was null.');
+          final List<Object?> args = (message as List<Object?>?)!;
+          final int? arg_instanceId = (args[0] as int?);
+          assert(arg_instanceId != null,
+              'Argument for dev.flutter.pigeon.WebViewHostApi.setBackgroundColor was null, expected non-null int.');
+          final int? arg_color = (args[1] as int?);
+          assert(arg_color != null,
+              'Argument for dev.flutter.pigeon.WebViewHostApi.setBackgroundColor was null, expected non-null int.');
+          api.setBackgroundColor(arg_instanceId!, arg_color!);
+          return <Object?, Object?>{};
+        });
+      }
+    }
   }
 }
 
diff --git a/packages/webview_flutter/webview_flutter_android/test/android_webview_test.mocks.dart b/packages/webview_flutter/webview_flutter_android/test/android_webview_test.mocks.dart
index 90cbf2c4fefe..3c1cd610c136 100644
--- a/packages/webview_flutter/webview_flutter_android/test/android_webview_test.mocks.dart
+++ b/packages/webview_flutter/webview_flutter_android/test/android_webview_test.mocks.dart
@@ -3,6 +3,7 @@
 // Do not manually edit this file.
 
 import 'dart:async' as _i4;
+import 'dart:ui' as _i5;
 
 import 'package:mockito/mockito.dart' as _i1;
 import 'package:webview_flutter_android/src/android_webview.dart' as _i2;
@@ -332,6 +333,10 @@ class MockTestWebViewHostApi extends _i1.Mock
               #setWebChromeClient, [instanceId, clientInstanceId]),
           returnValueForMissingStub: null);
   @override
+  void setBackgroundColor(int? instanceId, int? color) => super.noSuchMethod(
+      Invocation.method(#setBackgroundColor, [instanceId, color]),
+      returnValueForMissingStub: null);
+  @override
   String toString() => super.toString();
 }
 
@@ -485,6 +490,11 @@ class MockWebView extends _i1.Mock implements _i2.WebView {
           returnValue: Future<void>.value(),
           returnValueForMissingStub: Future<void>.value()) as _i4.Future<void>);
   @override
+  _i4.Future<void> setBackgroundColor(_i5.Color? color) =>
+      (super.noSuchMethod(Invocation.method(#setBackgroundColor, [color]),
+          returnValue: Future<void>.value(),
+          returnValueForMissingStub: Future<void>.value()) as _i4.Future<void>);
+  @override
   _i4.Future<void> release() =>
       (super.noSuchMethod(Invocation.method(#release, []),
           returnValue: Future<void>.value(),
diff --git a/packages/webview_flutter/webview_flutter_android/test/webview_android_widget_test.mocks.dart b/packages/webview_flutter/webview_flutter_android/test/webview_android_widget_test.mocks.dart
index 0582049acf6d..6ee53f9f9362 100644
--- a/packages/webview_flutter/webview_flutter_android/test/webview_android_widget_test.mocks.dart
+++ b/packages/webview_flutter/webview_flutter_android/test/webview_android_widget_test.mocks.dart
@@ -3,10 +3,11 @@
 // Do not manually edit this file.
 
 import 'dart:async' as _i4;
+import 'dart:ui' as _i5;
 
 import 'package:mockito/mockito.dart' as _i1;
 import 'package:webview_flutter_android/src/android_webview.dart' as _i2;
-import 'package:webview_flutter_android/webview_android_widget.dart' as _i5;
+import 'package:webview_flutter_android/webview_android_widget.dart' as _i6;
 import 'package:webview_flutter_platform_interface/webview_flutter_platform_interface.dart'
     as _i3;
 
@@ -229,6 +230,11 @@ class MockWebView extends _i1.Mock implements _i2.WebView {
           returnValue: Future<void>.value(),
           returnValueForMissingStub: Future<void>.value()) as _i4.Future<void>);
   @override
+  _i4.Future<void> setBackgroundColor(_i5.Color? color) =>
+      (super.noSuchMethod(Invocation.method(#setBackgroundColor, [color]),
+          returnValue: Future<void>.value(),
+          returnValueForMissingStub: Future<void>.value()) as _i4.Future<void>);
+  @override
   _i4.Future<void> release() =>
       (super.noSuchMethod(Invocation.method(#release, []),
           returnValue: Future<void>.value(),
@@ -241,7 +247,7 @@ class MockWebView extends _i1.Mock implements _i2.WebView {
 ///
 /// See the documentation for Mockito's code generation for more information.
 class MockWebViewAndroidDownloadListener extends _i1.Mock
-    implements _i5.WebViewAndroidDownloadListener {
+    implements _i6.WebViewAndroidDownloadListener {
   MockWebViewAndroidDownloadListener() {
     _i1.throwOnMissingStub(this);
   }
@@ -267,7 +273,7 @@ class MockWebViewAndroidDownloadListener extends _i1.Mock
 ///
 /// See the documentation for Mockito's code generation for more information.
 class MockWebViewAndroidJavaScriptChannel extends _i1.Mock
-    implements _i5.WebViewAndroidJavaScriptChannel {
+    implements _i6.WebViewAndroidJavaScriptChannel {
   MockWebViewAndroidJavaScriptChannel() {
     _i1.throwOnMissingStub(this);
   }
@@ -293,7 +299,7 @@ class MockWebViewAndroidJavaScriptChannel extends _i1.Mock
 ///
 /// See the documentation for Mockito's code generation for more information.
 class MockWebViewAndroidWebChromeClient extends _i1.Mock
-    implements _i5.WebViewAndroidWebChromeClient {
+    implements _i6.WebViewAndroidWebChromeClient {
   MockWebViewAndroidWebChromeClient() {
     _i1.throwOnMissingStub(this);
   }
@@ -310,7 +316,7 @@ class MockWebViewAndroidWebChromeClient extends _i1.Mock
 ///
 /// See the documentation for Mockito's code generation for more information.
 class MockWebViewAndroidWebViewClient extends _i1.Mock
-    implements _i5.WebViewAndroidWebViewClient {
+    implements _i6.WebViewAndroidWebViewClient {
   MockWebViewAndroidWebViewClient() {
     _i1.throwOnMissingStub(this);
   }
@@ -442,7 +448,7 @@ class MockWebViewPlatformCallbacksHandler extends _i1.Mock
 /// A class which mocks [WebViewProxy].
 ///
 /// See the documentation for Mockito's code generation for more information.
-class MockWebViewProxy extends _i1.Mock implements _i5.WebViewProxy {
+class MockWebViewProxy extends _i1.Mock implements _i6.WebViewProxy {
   MockWebViewProxy() {
     _i1.throwOnMissingStub(this);
   }