Examine source code of BuildMarker

{
  "manifest_version": 3,
  "name": "BuildMarker",
  "version": "2.5",
  "permissions": [
    "bookmarks",
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "*://*.issdlm.com/*"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "default.html",
    "default_icon": {
      "16": "images/icon16.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    }
  },
  "icons": {
    "128": "images/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "nicholas.heyer@ghsiss.com"
    }
  }
}