color update with small UI changes

lib/screens/target_view.dart

@@ -78,16 +78,23 @@ class _TargetViewScreenState extends State<TargetViewScreen> {
       return Colors.lime;
     case 'mint':
       return Colors.greenAccent;
-    case 'sky':
+    case 'orange':
       return Colors.orange;
     case 'violet':
       return Colors.deepPurpleAccent;
+    case 'amber':
+      return Colors.amber;
+    case 'brown':
+      return Colors.brown;
+    case 'grey':
+      return Colors.grey;
     default:
       return Colors.blue; // fallback
   }
 }
 
 
+
   Future<void> _loadJsonAndImage() async {
     try {
       final byteData = await rootBundle.load(targetAssetPath);