Examine source code of Twitter OG Verification

{
  "manifest_version": 2,
  "name": "Twitter OG Verification",
  "description": "Extention to remove 8$ Verifications and keep genuine Verifications",
  "version": "1.0",
  "action": {
    "default_popup": "index.html",
    "default_icon": "default.png"
  },
  "icons": {
    "512": "./default.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://twitter.com/*"
      ],
      "js": [
        "/script.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "./background.js"
    ]
  },
  "permissions": [
    "nativeMessaging"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{76b6f156-431a-41c8-ae5d-9a26b747a309}"
    }
  }
}