Examine source code of CNL Decryptor

{
  "manifest_version": 3,
  "default_locale": "en",
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "author": "Andreas Bielawski",
  "version": "2.3.1",
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "background": {
    "service_worker": "build/service-worker.js",
    "scripts": [
      "build/service-worker.js"
    ],
    "type": "module"
  },
  "options_ui": {
    "page": "options/options.html"
  },
  "action": {
    "default_icon": {
      "16": "icons/16.png",
      "32": "icons/32.png",
      "48": "icons/48.png",
      "96": "icons/96.png",
      "128": "icons/128.png"
    },
    "default_title": "__MSG_extensionName__"
  },
  "permissions": [
    "declarativeNetRequest",
    "storage",
    "webRequest"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "net_rules",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "/web_accessible_resources/jdcheck.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "cnl-decrypt@brawl345.github.com",
      "strict_min_version": "120.0"
    },
    "gecko_android": {
      "strict_min_version": "128.0"
    }
  }
}