fix color of tim, scroll bar and add readme help for android build errors

example/lib/main.dart

@@ -16,24 +16,7 @@ class MyApp extends StatefulWidget {
 class _MyAppState extends State<MyApp> {
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      // theme: ThemeData(
-      //   scaffoldBackgroundColor: MihColors.primary(),
-      //   colorScheme: ColorScheme(
-      //     brightness: Brightness.dark,
-      //     primary: MihColors.secondary(),
-      //     onPrimary: MihColors.primary(),
-      //     secondary: MihColors.primary(),
-      //     onSecondary: MihColors.secondary(),
-      //     error: MihColors.red(),
-      //     onError: MihColors.primary(),
-      //     surface: MihColors.primary(),
-      //     onSurface: MihColors.secondary(),
-      //   ),
-      // ),
-      home: const HomePage(),
-    );
+    return MaterialApp(title: 'Flutter Demo', home: const HomePage());
   }
 }
 
@@ -45,6 +28,7 @@ class HomePage extends StatelessWidget {
     return Scaffold(
       body: Center(
         child: MihPackageTile(
+          authenticateUser: true,
           onTap: () {
             Navigator.push(
               context,
@@ -52,9 +36,9 @@ class HomePage extends StatelessWidget {
             );
           },
           packageName: "Example Package",
-          packageIcon: Icon(MihIcons.mihLogo, color: MihColors.secondary()),
+          packageIcon: Icon(MihIcons.mihLogo, color: MihColors.primary()),
           iconSize: 150,
-          textColor: MihColors.secondary(),
+          textColor: MihColors.primary(),
         ),
       ),
     );

example/lib/package_structure/package_tools/tool_body_one.dart

@@ -14,6 +14,7 @@ class _ToolBodyOneState extends State<ToolBodyOne> {
     return MihPackageToolBody(
       backgroundColor: MihColors.primary(),
       bodyItem: MihSingleChildScroll(
+        scrollbarOn: true,
         child: Column(
           mainAxisAlignment: MainAxisAlignment.start,
           children: [

example/lib/package_structure/package_tools/tool_body_two.dart

@@ -24,6 +24,7 @@ class _ToolBodyTwoState extends State<ToolBodyTwo> {
     return MihPackageToolBody(
       backgroundColor: MihColors.primary(),
       bodyItem: MihSingleChildScroll(
+        scrollbarOn: true,
         child: MihForm(
           formKey: _formKey,
           formFields: [