How To Create Tabbar With Different Design Using Flutter

bottom: TabBar(
      unselectedLabelColor: Colors.lightGreen,
      indicatorSize: TabBarIndicatorSize.label,
      indicator: BoxDecoration(
          borderRadius: BorderRadius.circular(40),
          color: Colors.lightGreen
),
      tabs: [
        Tab(
          child: Container(
            decoration: BoxDecoration(
                borderRadius: BorderRadius.circular(40),
                border: Border.all(color: Colors.lightGreen, width: 1)),
            child: Align(
              alignment: Alignment.center,
              child: Text("HOME"),
            ),
          ),
        ),
        Tab(
          child: Container(
            decoration: BoxDecoration(
                borderRadius: BorderRadius.circular(40),
                border: Border.all(color: Colors.lightGreen, width: 1)),
            child: Align(
              alignment: Alignment.center,
              child: Text("SCHOOL"),
            ),
          ),
        ),
        Tab(
          child: Container(
            decoration: BoxDecoration(
                borderRadius: BorderRadius.circular(40),
                border: Border.all(color: Colors.lightGreen, width: 1)),
            child: Align(
              alignment: Alignment.center,
              child: Text("MEMORY"),
            ),
          ),
        ),
      ]),
),
body: TabBarView(children: [
  Icon(Icons.home,size: 30,),
  Icon(Icons.school, size: 30,),
  Icon(Icons.memory, size: 30,),
]),

import 'package:flutter/material.dart';
import 'package:gradient_bottom_navigation_bar/gradient_bottom_navigation_bar.dart';


void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'App Design',
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);


  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return DefaultTabController(
        length: 3,
        child: Scaffold(
          appBar: AppBar(
            centerTitle: true,
            title: Text('Tabbar Design'),
            backgroundColor: Colors.black,
            elevation: 0,
            bottom: TabBar(
                unselectedLabelColor: Colors.lightGreen,
                indicatorSize: TabBarIndicatorSize.label,
                indicator: BoxDecoration(
                    borderRadius: BorderRadius.circular(40),
                    color: Colors.lightGreen),
                tabs: [
                  Tab(
                    child: Container(
                      decoration: BoxDecoration(
                          borderRadius: BorderRadius.circular(40),
                          border: Border.all(color: Colors.lightGreen, width: 1)),
                      child: Align(
                        alignment: Alignment.center,
                        child: Text("HOME"),
                      ),
                    ),
                  ),
                  Tab(
                    child: Container(
                      decoration: BoxDecoration(
                          borderRadius: BorderRadius.circular(40),
                          border: Border.all(color: Colors.lightGreen, width: 1)),
                      child: Align(
                        alignment: Alignment.center,
                        child: Text("SCHOOL"),
                      ),
                    ),
                  ),
                  Tab(
                    child: Container(
                      decoration: BoxDecoration(
                          borderRadius: BorderRadius.circular(40),
                          border: Border.all(color: Colors.lightGreen, width: 1)),
                      child: Align(
                        alignment: Alignment.center,
                        child: Text("MEMORY"),
                      ),
                    ),
                  ),
                ]),
          ),
          body: TabBarView(children: [
            Icon(Icons.home,size: 30,),
            Icon(Icons.school, size: 30,),
            Icon(Icons.memory, size: 30,),
          ]),
        ),
    );

  }
}