first init

covas_mobile/lib/MyHomePage.dart

@@ -192,7 +192,7 @@ class _MyHomePageState extends State<MyHomePage> with ShowErrorDialog {
             ),
             Text(
               '$listUser',
-              style: Theme.of(context).textTheme.headline4,
+              style: Theme.of(context).textTheme,
             ),
           ],
         ),

covas_mobile/lib/main.dart

@@ -195,7 +195,7 @@ class _LoginDemoState extends State<LoginDemo> with ShowErrorDialog {
                     hintText: 'Enter secure password'),
               ),
             ),
-            FlatButton(
+            TextButton(
               onPressed: () {
                 //TODO FORGOT PASSWORD SCREEN GOES HERE
               },
@@ -209,7 +209,7 @@ class _LoginDemoState extends State<LoginDemo> with ShowErrorDialog {
               width: 250,
               decoration: BoxDecoration(
                   color: Colors.blue, borderRadius: BorderRadius.circular(20)),
-              child: FlatButton(
+              child: TextButton(
                 onPressed: () {
                   _login(context);
                 },