gistfile1.txt

import 'package:flutter/material.dart';

class HomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      body: new Container(
        alignment: Alignment.center,
        padding: const EdgeInsets.all(16.0),
        child: new TextFormField(
          decoration: new InputDecoration(
            labelText: 'label',
            enabledBorder: const OutlineInputBorder(
              borderSide: const BorderSide(color: Colors.orange),
             ),
            focusedBorder: const OutlineInputBorder(
              borderSide: const BorderSide(color: Colors.blue),
            ) ,
            border: OutlineInputBorder(),
          ),
        ),
      ),
    );
  }
}

void main() {
  runApp(new MaterialApp(home: new HomePage()));
}