lib/helpers/theme/app_theme.dart

@@ -40,6 +40,12 @@ class AppTheme {
 
   static Color primaryColor = Color(0xff663399);
 
+  static void updatePrimaryColor(Color color) {
+    primaryColor = color;
+    theme = getThemeFromThemeMode(); // rebuild theme data
+    AppStyle.changeMyTheme();        // apply to widgets
+  }
+
   static ThemeData getThemeFromThemeMode() {
     return ThemeCustomizer.instance.theme == ThemeMode.light ? lightTheme : darkTheme;
   }
@@ -58,7 +64,7 @@ class AppTheme {
     scaffoldBackgroundColor: Color(0xffF5F5F5),
     canvasColor: Colors.transparent,
 
-    /// AppBar Theme
+    /// AppBar Theme  
     appBarTheme: AppBarTheme(
         backgroundColor: Color(0xffF5F5F5), iconTheme: IconThemeData(color: Color(0xff495057)), actionsIconTheme: IconThemeData(color: Color(0xff495057))),
 

lib/helpers/theme/theme_customizer.dart

@@ -21,7 +21,7 @@ class ThemeCustomizer {
   Language currentLanguage = Language.languages.first;
 
   ThemeMode theme = ThemeMode.light;
-  ThemeMode leftBarTheme = ThemeMode.light;
+  ThemeMode leftBarTheme = ThemeMode.light;  
   ThemeMode rightBarTheme = ThemeMode.light;
   ThemeMode topBarTheme = ThemeMode.light;
 

lib/view/appearance_screen.dart

@@ -0,0 +1,133 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:marco/helpers/widgets/custom_app_bar.dart';
+import 'package:marco/helpers/widgets/my_spacing.dart';
+import 'package:marco/helpers/widgets/my_text.dart';
+import 'package:marco/helpers/theme/app_theme.dart';
+// import 'package:marco/helpers/theme/app_notifier.dart';
+// import 'package:provider/provider.dart';
+
+class AppearancePage extends StatefulWidget {
+  const AppearancePage({super.key});
+
+  @override
+  State<AppearancePage> createState() => _AppearancePageState();
+}
+
+class _AppearancePageState extends State<AppearancePage> {
+  String selectedTheme = "Red";
+
+  void _changeTheme(String theme) {
+  setState(() => selectedTheme = theme);
+
+  Color newColor;
+  switch (theme) {
+    case "Red":
+      newColor = Colors.red;
+      break;
+    case "Green":
+      newColor = Colors.green;
+      break;
+    case "Blue":
+      newColor = Colors.blue;
+      break;
+    default:
+      newColor = Colors.red;
+  }
+
+  // ✅ dynamically change app color
+  AppTheme.updatePrimaryColor(newColor);
+}
+
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: const Color(0xFFF9FAFB),
+      appBar: CustomAppBar(
+        title: "Appearance",
+        onBackPressed: () => Get.back(),
+      ),
+      body: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 24),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            MyText.titleMedium(
+              "Change Theme",
+              fontWeight: 700,
+              fontSize: 18,
+            ),
+            MySpacing.height(8),
+            MyText.bodySmall(
+              "Select a color theme for your app appearance.",
+              color: Colors.black54,
+            ),
+            MySpacing.height(20),
+            _buildThemeOption("Red", Colors.red),
+            _buildThemeOption("Green", Colors.green),
+            _buildThemeOption("Blue", Colors.blue),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildThemeOption(String name, Color color) {
+    final isSelected = selectedTheme == name;
+
+    return GestureDetector(
+      onTap: () => _changeTheme(name),
+      child: Container(
+        margin: const EdgeInsets.only(bottom: 14),
+        decoration: BoxDecoration(
+          color: isSelected ? color.withOpacity(0.08) : Colors.white,
+          borderRadius: BorderRadius.circular(10),
+          border: Border.all(
+            color: isSelected ? color : Colors.grey.shade300,
+            width: isSelected ? 1.5 : 1,
+          ),
+          boxShadow: [
+            if (isSelected)
+              BoxShadow(
+                color: color.withOpacity(0.15),
+                blurRadius: 6,
+                offset: const Offset(0, 3),
+              ),
+          ],
+        ),
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
+          child: Row(
+            children: [
+              CircleAvatar(
+                radius: 10,
+                backgroundColor: color,
+              ),
+              MySpacing.width(14),
+              MyText.bodyMedium(
+                name,
+                fontWeight: 600,
+                color: Colors.black87,
+              ),
+              const Spacer(),
+              AnimatedSwitcher(
+                duration: const Duration(milliseconds: 250),
+                transitionBuilder: (child, anim) =>
+                    ScaleTransition(scale: anim, child: child),
+                child: isSelected
+                    ? Icon(
+                        Icons.check_circle_rounded,
+                        key: ValueKey(name),
+                        color: color,
+                        size: 22,
+                      )
+                    : const SizedBox.shrink(),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/view/layouts/user_profile_right_bar.dart

@@ -13,6 +13,8 @@ import 'package:marco/view/employees/employee_profile_screen.dart';
 import 'package:marco/helpers/services/tenant_service.dart';
 import 'package:marco/view/tenant/tenant_selection_screen.dart';
 import 'package:marco/controller/tenant/tenant_switch_controller.dart';
+import 'package:marco/view/appearance_screen.dart';
+
 
 
 
@@ -310,8 +312,13 @@ Widget _switchTenantRow() {
           _menuItemRow(
             icon: LucideIcons.settings,
             label: 'Settings',
+            onTap: () {
+              Get.to(() => const AppearancePage());
+            },
           ),
+          
           SizedBox(height: spacingHeight),
+
           _menuItemRow(
             icon: LucideIcons.badge_alert,
             label: 'Support',