Examine source code of TransportNomad

{
  "manifest_version": 3,
  "name": "TransportNomad",
  "version": "2.1",
  "description": "Collect addresses and build TransportNomad route links",
  "author": "TransportNomad",
  "homepage_url": "https://transport-nomad.com",
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@transport-nomad.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.timocom.com/*",
        "*://*.trans.eu/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icon.png"
      ],
      "matches": [
        "*://*.timocom.com/*",
        "*://*.trans.eu/*"
      ]
    }
  ],
  "icons": {
    "16": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  }
}