title: how to reduce height of Tab Bar in flutter
body: <p>I am using Scaffold to show my bottom tab navigator, but it shows too high, is there a way to reduce size of height in my Tab Bar. here is the code</p>
  
  <pre><code>Scaffold(
          bottomNavigationBar: Material(
          child: new TabBar(
            tabs: &lt;Widget&gt;[
              Tab(icon: Icon(Icons.home),text: 'Home'),
              Tab(icon: Icon(Icons.settings),text: 'Settings')
            ],
            labelColor: Colors.blue,
            unselectedLabelColor: Colors.grey,
          ),
        ),
          body: TabBarView(
            children: [
              MainScreen(),
              FirstPage(),
            ],
          ),
  
        )
  </code></pre>