Examine source code of Transkriptor: Transcribe Audio to Text

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "version": "2.0",
  "default_locale": "en",
  "manifest_version": 3,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "meeting.css",
        "fw.min.css",
        "swal2.min.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@transkriptor.com",
      "strict_min_version": "42.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://meet.google.com/*",
        "*://teams.live.com/*",
        "*://teams.microsoft.com/*",
        "*://*.zoom.us/*"
      ],
      "js": [
        "swal2.min.js",
        "meeting.js"
      ]
    }
  ],
  "externally_connectable": {
    "matches": [
      "https://dashboard.transkriptor.com/dashboard",
      "https://dashboard.transkriptor.com/*",
      "https://app.transkriptor.com/*"
    ]
  },
  "icons": {
    "16": "logo_16_5.png",
    "48": "logo_48_4.png",
    "128": "logo_128_4.png"
  },
  "action": {
    "default_popup": "popup.html"
  },
  "host_permissions": [
    "https://app.transkriptor.com/*",
    "https://transkriptor.com/*",
    "https://dashboard.transkriptor.com/*"
  ]
}