Examine source code of Twitter Bird Logo

{
  "manifest_version": 2,
  "name": "TwitterLogo",
  "version": "1.5",
  "description": "Changes the twitter logo back to Larry Bird",
  "icons": {
    "48": "logo.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitter.com/*",
        "*://*.x.com/*"
      ],
      "js": [
        "twitterlogo.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ee5ea607-00f9-4d75-8bc8-0bb8f5495a77}"
    }
  }
}