Examine source code of Captcha Counter

{
  "manifest_version": 3,
  "name": "Captcha Counter",
  "version": "0.1.1",
  "description": "Counts the CAPTCHAs you encounter: Cloudflare Turnstile, Google reCAPTCHA, and hCaptcha.",
  "action": {
    "default_popup": "src/popup/index.html",
    "default_title": "Captcha Counter",
    "default_icon": {
      "16": "icons/idle-16.png",
      "32": "icons/idle-32.png",
      "48": "icons/idle-48.png",
      "128": "icons/idle-128.png"
    }
  },
  "icons": {
    "16": "icons/idle-16.png",
    "32": "icons/idle-32.png",
    "48": "icons/idle-48.png",
    "128": "icons/idle-128.png"
  },
  "background": {
    "scripts": [
      "src/background/index.js"
    ],
    "service_worker": "src/background/index.js",
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/main-world.js"
      ],
      "world": "MAIN",
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/index.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "src/options/index.html",
    "open_in_tab": true
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "captcha-counter@extension",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}