🚧 remove new keyword to get inline with dart 2 code standard.

handling_routes/lib/screens/home.dart

@@ -3,34 +3,34 @@ import 'package:flutter/material.dart';
 class HomePage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return new Scaffold(
+    return Scaffold(
       // AppBar
-      appBar: new AppBar(
+      appBar: AppBar(
         // Title
-        title: new Text("Home Page"),
+        title: Text("Home Page"),
         // App Bar background color
         backgroundColor: Colors.red,
       ),
       // Body
-      body: new Container(
+      body: Container(
         // Center the content
-        child: new Center(
-          child: new Column(
+        child: Center(
+          child: Column(
             // Center content in the column
             mainAxisAlignment: MainAxisAlignment.center,
             // add children to the column
             children: <Widget>[
               // Text
-              new Text(
+              Text(
                 "Home Page\nClick on below icon to goto About Page",
                 // Setting the style for the Text
-                style: new TextStyle(fontSize: 20.0,),
+                style: TextStyle(fontSize: 20.0,),
                 // Set text alignment to center
                 textAlign: TextAlign.center,
               ),
               // Icon Button
-              new IconButton(
-                icon: new Icon(
+              IconButton(
+                icon: Icon(
                   Icons.info,
                   color: Colors.blue,
                 ),