diff --git a/lib/main.dart b/lib/main.dart
index 9e4deb2..47901dc 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -196,23 +196,6 @@ class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
           'dark' => ThemeMode.dark,
           _ => ThemeMode.system
         },
-        locale: () {
-          var lang = appdata.settings['language'];
-          if (lang == 'system') {
-            return null;
-          }
-          return switch (lang) {
-            'zh-CN' => const Locale('zh', 'CN'),
-            'zh-TW' => const Locale('zh', 'TW'),
-            'en-US' => const Locale('en'),
-            _ => null
-          };
-        }(),
-        supportedLocales: const [
-          Locale('en'),
-          Locale('zh', 'CN'),
-          Locale('zh', 'TW'),
-        ],
         builder: (context, widget) {
           ErrorWidget.builder = (details) {
             Log.error("Unhandled Exception",
diff --git a/lib/utils/image.dart b/lib/utils/image.dart
index 9566634..0175365 100644
--- a/lib/utils/image.dart
+++ b/lib/utils/image.dart
@@ -39,12 +39,12 @@ class Image {
     return image;
   }
 
-  int getPixelAtIndex(int index) {
+  Color getPixelAtIndex(int index) {
     if (index < 0 || index >= _data.length) {
       throw ArgumentError(
           'Invalid argument: index must be in the range of [0, ${_data.length}).');
     }
-    return _data[index];
+    return Color.fromValue(_data[index]);
   }
 
   Image copyRange(int x, int y, int width, int height) {
@@ -184,11 +184,11 @@ class Color {
 
   Color.fromValue(this.value);
 
-  int get r => (value >> 16) & 0xFF;
+  int get r => value & 0xFF;
 
   int get g => (value >> 8) & 0xFF;
 
-  int get b => value & 0xFF;
+  int get b => (value >> 16) & 0xFF;
 
   int get a => (value >> 24) & 0xFF;
 }
diff --git a/lib/utils/pdf.dart b/lib/utils/pdf.dart
index 98bf521..085ea1f 100644
--- a/lib/utils/pdf.dart
+++ b/lib/utils/pdf.dart
@@ -394,10 +394,10 @@ class PdfGenerator {
     var height = image.height;
     data = Uint8List(width * height * 3);
     for (var i = 0; i < width * height; i++) {
-      var pixel = image.getPixelAtIndex(i); // RGBA
-      data[i * 3] = pixel & 0xFF; // R
-      data[i * 3 + 1] = (pixel >> 8) & 0xFF; // G
-      data[i * 3 + 2] = (pixel >> 16) & 0xFF; // B
+      var pixel = image.getPixelAtIndex(i);
+      data[i * 3] = pixel.r;
+      data[i * 3 + 1] = pixel.g;
+      data[i * 3 + 2] = pixel.b;
     }
     data = tdeflCompressData(data, true, true, 9);
     return (width: width, height: height, data: data);