react-chrome-extension-cli/templates/devtools/src/devtools.js

The CLI for your next Chrome Extension using React

'use strict';

// A DevTools extension adds functionality to the Chrome DevTools.
// For more information on DevTools,
// See https://developer.chrome.com/extensions/devtools

// Create a panel named `My Panel`
chrome.devtools.panels.create('My Panel', '', 'panel.html', panel => {
  console.log('Panel was successfully created!');
});