minor changes added

lib/pages/first.dart

@@ -35,7 +35,7 @@ class _FirstState extends State<First> {
                 ),
               ),
               MaterialButton(
-                color: Colors.indigo,
+                color: Colors.cyan,
                 onPressed: () {
                   setState(() {
                     code = title.text;

lib/pages/qr_home.dart

@@ -15,7 +15,7 @@ class _HomeState extends State<Home> {
       length: 2,
       child: Scaffold(
         appBar: AppBar(
-          backgroundColor: Colors.indigo[700],
+          backgroundColor: Colors.cyan,
           bottom: const TabBar(
             tabs: [
               Tab(

lib/pages/second.dart

@@ -64,7 +64,7 @@ class _SecondState extends State<Second> {
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
             Text(
-              "Code :" + _qrInfo!,
+              "Pharmaceutical :" + _qrInfo!,
               style: TextStyle(
                 fontSize: 25,
               ),