fix；设置和深浅色

lib/widgets/bottom_tab_bar.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:shadcn_ui/shadcn_ui.dart';
 
 import '../theme/app_icons.dart';
 import '../theme/yanting_text.dart';
@@ -30,24 +31,28 @@ class BottomTabBar extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colors = ShadTheme.of(context).colorScheme;
     return DecoratedBox(
-      decoration: const BoxDecoration(
-        color: YantingColors.background,
-        border: Border(top: BorderSide(color: YantingColors.border)),
-      ),
+      decoration: const BoxDecoration(color: Colors.transparent),
       child: SizedBox(
         height: YantingSpacing.tabBarHeight,
-        child: Row(
-          children: [
-            for (var index = 0; index < items.length; index++)
-              Expanded(
-                child: _BottomTabButton(
-                  item: items[index],
-                  selected: index == selectedIndex,
-                  onTap: () => onSelected(index),
+        child: DecoratedBox(
+          decoration: BoxDecoration(
+            color: colors.background,
+            border: Border(top: BorderSide(color: colors.border)),
+          ),
+          child: Row(
+            children: [
+              for (var index = 0; index < items.length; index++)
+                Expanded(
+                  child: _BottomTabButton(
+                    item: items[index],
+                    selected: index == selectedIndex,
+                    onTap: () => onSelected(index),
+                  ),
                 ),
-              ),
-          ],
+            ],
+          ),
         ),
       ),
     );
@@ -67,9 +72,8 @@ class _BottomTabButton extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final color = selected
-        ? YantingColors.foreground
-        : YantingColors.mutedForeground;
+    final colors = ShadTheme.of(context).colorScheme;
+    final color = selected ? colors.foreground : colors.mutedForeground;
     return InkWell(
       onTap: onTap,
       child: Column(