mod: show text scale subtitle

lib/pages/setting/pages/color_select.dart

@@ -149,6 +149,7 @@ class ColorSelectController extends GetxController {
   RxInt type = 0.obs;
   late final List<Map<String, dynamic>> colorThemes;
   RxInt currentColor = 0.obs;
+  RxDouble currentTextScale = 1.0.obs;
 
   @override
   void onInit() {
@@ -159,6 +160,8 @@ class ColorSelectController extends GetxController {
     type.value = dynamicColor.value ? 0 : 1;
     currentColor.value =
         setting.get(SettingBoxKey.customColor, defaultValue: 0);
+    currentTextScale.value =
+        setting.get(SettingBoxKey.defaultTextScale, defaultValue: 1.0);
     super.onInit();
   }
 }

lib/pages/setting/pages/font_size_select.dart

@@ -30,7 +30,7 @@ class _FontSizeSelectPageState extends State<FontSizeSelectPage> {
   setFontSize() {
     setting.put(SettingBoxKey.defaultTextScale, currentSize);
     Get.forceAppUpdate();
-    Get.back();
+    Get.back(result: currentSize);
   }
 
   @override
@@ -67,7 +67,7 @@ class _FontSizeSelectPageState extends State<FontSizeSelectPage> {
                           .colorScheme
                           .primary
                           .withOpacity(0.3))),
-              color: Theme.of(context).colorScheme.background,
+              color: Theme.of(context).colorScheme.surface,
             ),
             child: Row(
               children: [

lib/pages/setting/style_setting.dart

@@ -359,9 +359,20 @@ class _StyleSettingState extends State<StyleSetting> {
           ),
           ListTile(
             dense: false,
-            onTap: () => Get.toNamed('/fontSizeSetting'),
+            onTap: () async {
+              dynamic result = await Get.toNamed('/fontSizeSetting');
+              if (result != null) {
+                colorSelectController.currentTextScale.value = result;
+              }
+            },
             title: Text('字体大小', style: titleStyle),
             leading: const Icon(Icons.format_size_outlined),
+            subtitle: Obx(() => Text(
+                  colorSelectController.currentTextScale.value == 1.0
+                      ? '默认'
+                      : colorSelectController.currentTextScale.value.toString(),
+                  style: subTitleStyle,
+                )),
           ),
           ListTile(
             dense: false,