diff --git a/README.md b/README.md
index 774d86a..7c63b9b 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 <div align='center'>
-<img src='./assets/images/meread_round.png' alt='MeRead' width='100px'/>
+<img src='./assets/meread_round.png' alt='MeRead' width='100px'/>
 <h1>MeRead - 悦读</h1>
 
 </p>
@@ -13,10 +13,10 @@
 </p>
 
 <p>
-<img alt="MeRead" src="./assets/images/app1.jpg" width="204">
-<img alt="MeRead" src="./assets/images/app2.jpg" width="204">
-<img alt="MeRead" src="./assets/images/app3.jpg" width="204">
-<img alt="MeRead" src="./assets/images/app4.jpg" width="204">
+<img alt="MeRead" src="./assets/app1.jpg" width="200">
+<img alt="MeRead" src="./assets/app2.jpg" width="200">
+<img alt="MeRead" src="./assets/app3.jpg" width="200">
+<img alt="MeRead" src="./assets/app4.jpg" width="200">
 </p>
 </div>
 
@@ -30,7 +30,7 @@
 - [x] 三种阅读模式：阅读器、应用内标签页、系统浏览器
 - [x] 未读筛选、文章收藏、订阅源分组
 - [x] 适配深色模式
-- [x] 适配 Material You
+- [x] 适配 Material You，支持壁纸动态取色
 - [ ] 多语言支持
 
 ## 致谢
diff --git a/android/build.gradle b/android/build.gradle
index 83ae220..58a8c74 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.6.10'
+    ext.kotlin_version = '1.7.10'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.1.2'
+        classpath 'com.android.tools.build:gradle:7.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/assets/app1.jpg b/assets/app1.jpg
new file mode 100644
index 0000000..ceee2f5
Binary files /dev/null and b/assets/app1.jpg differ
diff --git a/assets/app2.jpg b/assets/app2.jpg
new file mode 100644
index 0000000..41b0a55
Binary files /dev/null and b/assets/app2.jpg differ
diff --git a/assets/app3.jpg b/assets/app3.jpg
new file mode 100644
index 0000000..43baebe
Binary files /dev/null and b/assets/app3.jpg differ
diff --git a/assets/app4.jpg b/assets/app4.jpg
new file mode 100644
index 0000000..4adf8e5
Binary files /dev/null and b/assets/app4.jpg differ
diff --git a/assets/images/app1.jpg b/assets/images/app1.jpg
deleted file mode 100644
index 0c88c6f..0000000
Binary files a/assets/images/app1.jpg and /dev/null differ
diff --git a/assets/images/app2.jpg b/assets/images/app2.jpg
deleted file mode 100644
index bd327fd..0000000
Binary files a/assets/images/app2.jpg and /dev/null differ
diff --git a/assets/images/app3.jpg b/assets/images/app3.jpg
deleted file mode 100644
index 2b5b7a3..0000000
Binary files a/assets/images/app3.jpg and /dev/null differ
diff --git a/assets/images/app4.jpg b/assets/images/app4.jpg
deleted file mode 100644
index fe25afb..0000000
Binary files a/assets/images/app4.jpg and /dev/null differ
diff --git a/assets/images/meread.png b/assets/meread.png
similarity index 100%
rename from assets/images/meread.png
rename to assets/meread.png
diff --git a/assets/images/meread_round.png b/assets/meread_round.png
similarity index 100%
rename from assets/images/meread_round.png
rename to assets/meread_round.png
diff --git a/lib/routes/setting_page/about_page/about_page.dart b/lib/routes/setting_page/about_page/about_page.dart
index 08b94bf..453dbc9 100644
--- a/lib/routes/setting_page/about_page/about_page.dart
+++ b/lib/routes/setting_page/about_page/about_page.dart
@@ -17,7 +17,7 @@ class AboutPage extends StatelessWidget {
               padding: EdgeInsets.fromLTRB(0, 24, 0, 8),
               child: CircleAvatar(
                 radius: 50,
-                backgroundImage: AssetImage('assets/images/meread.png'),
+                backgroundImage: AssetImage('assets/meread.png'),
               ),
             ),
             const Center(
@@ -29,7 +29,7 @@ class AboutPage extends StatelessWidget {
             const SizedBox(height: 8),
             const Center(
               child: Text(
-                'V 0.3.3',
+                'V 0.4.0',
                 style: TextStyle(fontSize: 16),
               ),
             ),
diff --git a/pubspec.yaml b/pubspec.yaml
index abaa586..acd6cd8 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -17,7 +17,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 0.3.3+15
+version: 0.4.0+16
 
 environment:
   sdk: '>=2.18.2 <3.0.0'
@@ -80,7 +80,7 @@ flutter:
   #   - images/a_dot_burr.jpeg
   #   - images/a_dot_ham.jpeg
   assets:
-    - assets/images/meread.png
+    - assets/meread.png
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/assets-and-images/#resolution-aware