Examine source code of Innovator Extension

{
  "name": "Innovator Extension",
  "version": "0.0.1",
  "author": "Anton Shchekota",
  "description": "Innovator browser extension which improving work with Start Item functionality",
  "homepage_url": "https://github.com/anthony-redFox/Innovator-extension",
  "manifest_version": 2,
  "minimum_chrome_version": "74",
  "icons": {
    "128": "/icon.png"
  },
  "permissions": [
    "tabs",
    "activeTab",
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "/background.js"
    ]
  }
}