Examine source code of Customizable Captcha

{
  "manifest_version": 3,
  "name": "Customizable Captcha",
  "version": "0.1",
  "description": "Customize Captcha text",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage"
  ],
  "author": "Zypheran",
  "developer": {
    "name": "Zypheran"
  },
  "content_scripts": [
    {
      "matches": [
        "*://challenges.cloudflare.com/*"
      ],
      "js": [
        "cloudflare.js"
      ],
      "all_frames": true
    },
    {
      "matches": [
        "*://newassets.hcaptcha.com/captcha/v1/*"
      ],
      "js": [
        "hcapthca.js"
      ],
      "all_frames": true
    },
    {
      "matches": [
        "*://www.google.com/recaptcha/api2/*",
        "*://www.google.com/recaptcha/enterprise/*"
      ],
      "js": [
        "google.js"
      ],
      "all_frames": true
    },
    {
      "matches": [
        "*://*.frcapi.com/api/v2/captcha/*"
      ],
      "js": [
        "friendly.js"
      ],
      "all_frames": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@customcaptcha-dev",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}