changed everything from filcnaplo to refilc finally

refilc/lib/theme/observer.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+
+class ThemeModeObserver extends ChangeNotifier {
+  ThemeMode _themeMode;
+  bool _updateNavbarColor;
+  ThemeMode get themeMode => _themeMode;
+  bool get updateNavbarColor => _updateNavbarColor;
+
+  ThemeModeObserver({ThemeMode initialTheme = ThemeMode.system, bool updateNavbarColor = true})
+      : _themeMode = initialTheme,
+        _updateNavbarColor = updateNavbarColor;
+
+  void changeTheme(ThemeMode mode, {bool updateNavbarColor = true}) {
+    _themeMode = mode;
+    _updateNavbarColor = updateNavbarColor;
+    notifyListeners();
+  }
+}