Use the following instructions to get started.

Get the code

To get started,
fork the SDK and use git to fetch a local copy:

Install dependencies listed in
Setting up the Framework development environment.

Fork the Flutter repo. For more information,
see GitHub’s official instructions.

Clone your fork:
    `git clone https://github.com//flutter.git`</nobr>

Change directory into the repo: cd flutter

Add an upstream remote:
    `git remote add upstream git@github.com:flutter/flutter.git`

Run flutter update-packages to fetch all the Dart packages that
Flutter uses.

Open the code in your IDE

In IntelliJ or VSCode, open packages/flutter,
where most of the Flutter framework code lives.

Make the change