feat:增加主题色

lib/pages/task_page.dart

@@ -20,12 +20,11 @@ class _TaskPageState extends State<TaskPage> {
   String _sortBy = 'created';
 
   List<Task> get _filteredTasks {
-    List<Task> tasks =
-        _tasks.where((task) {
-          if (_filter == 'active') return !task.isCompleted;
-          if (_filter == 'completed') return task.isCompleted;
-          return true;
-        }).toList();
+    List<Task> tasks = _tasks.where((task) {
+      if (_filter == 'active') return !task.isCompleted;
+      if (_filter == 'completed') return task.isCompleted;
+      return true;
+    }).toList();
 
     tasks.sort((a, b) {
       switch (_sortBy) {
@@ -48,32 +47,30 @@ class _TaskPageState extends State<TaskPage> {
   void _addTask() {
     showDialog(
       context: context,
-      builder:
-          (context) => TaskDialog(
-            onSave: (task) {
-              setState(() {
-                _tasks.add(task);
-              });
-            },
-          ),
+      builder: (context) => TaskDialog(
+        onSave: (task) {
+          setState(() {
+            _tasks.add(task);
+          });
+        },
+      ),
     );
   }
 
   void _editTask(Task task) {
     showDialog(
       context: context,
-      builder:
-          (context) => TaskDialog(
-            task: task,
-            onSave: (editedTask) {
-              setState(() {
-                final index = _tasks.indexWhere((t) => t.id == task.id);
-                if (index != -1) {
-                  _tasks[index] = editedTask;
-                }
-              });
-            },
-          ),
+      builder: (context) => TaskDialog(
+        task: task,
+        onSave: (editedTask) {
+          setState(() {
+            final index = _tasks.indexWhere((t) => t.id == task.id);
+            if (index != -1) {
+              _tasks[index] = editedTask;
+            }
+          });
+        },
+      ),
     );
   }
 
@@ -137,7 +134,7 @@ class _TaskPageState extends State<TaskPage> {
     final activeCount = _tasks.length - completedCount;
 
     return Card(
-      backgroundColor: Colors.grey[20],
+      backgroundColor: FluentTheme.of(context).accentColor.lighter,
       child: Padding(
         padding: const EdgeInsets.all(12.0),
         child: Row(
@@ -157,10 +154,14 @@ class _TaskPageState extends State<TaskPage> {
       children: [
         Text(
           value,
-          style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
+          style: TextStyle(
+            fontSize: 24,
+            fontWeight: FontWeight.bold,
+            color: Colors.white,
+          ),
         ),
         const SizedBox(height: 4),
-        Text(label, style: TextStyle(color: Colors.grey)),
+        Text(label, style: TextStyle(color: Colors.white)),
       ],
     );
   }
@@ -232,7 +233,11 @@ class _TaskPageState extends State<TaskPage> {
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          Icon(FluentIcons.check_list, size: 64, color: Colors.blue),
+          Icon(
+            FluentIcons.check_list,
+            size: 64,
+            color: FluentTheme.of(context).accentColor,
+          ),
           const SizedBox(height: 20),
           const Text(
             '还没有任务',
@@ -256,7 +261,7 @@ class _TaskPageState extends State<TaskPage> {
             task: task,
             onToggleComplete: () => _toggleTaskComplete(task),
             onEdit: () => _editTask(task),
-            onDelete: () => _deleteTask(task.id)
+            onDelete: () => _deleteTask(task.id),
           ),
         );
       },