Examine source code of I'm not robot captchavc

{
  "name": "I'm not robot captcha clicker",
  "options_page": "options.html",
  "description": "I'm not robot captcha clicker",
  "version": "1.3.1",
  "icons": {
    "16": "icons/brt-logo16.png",
    "48": "icons/brt-logo48.png",
    "128": "icons/brt-logo128.png"
  },
  "permissions": [
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "manifest_version": 2,
  "content_scripts": [
    {
      "run_at": "document_end",
      "all_frames": true,
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "css": [],
      "js": [
        "jquery-3.6.0.min.js",
        "common.js",
        "myscript.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "options.html",
    "Privacy-Policy.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{58ef68fe-0ccb-434e-9212-f4066c27af81}"
    }
  }
}