Examine source code of AMS-Solutions Octopus

{
  "manifest_version": 3,
  "default_locale": "fr",
  "browser_specific_settings": {
    "gecko": {
      "id": "cloud@ams-solutions.be",
      "strict_min_version": "42.0"
    }
  },
  "name": "AMS-Solutions Octopus",
  "description": "Fourni les informations de la carte d'identité électronique à l'application Octopus-Cloud",
  "version": "2.0",
  "icons": {
    "48": "images/icon-48.png",
    "96": "images/icon-96.png",
    "128": "images/icon-128.png",
    "256": "images/icon-256.png",
    "512": "images/icon-512.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "*://*.ams-solutions.be/cloud/*"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/toolbar-icon-16.png",
      "19": "images/toolbar-icon-19.png",
      "32": "images/toolbar-icon-32.png",
      "38": "images/toolbar-icon-38.png",
      "48": "images/toolbar-icon-48.png",
      "72": "images/toolbar-icon-72.png"
    }
  },
  "permissions": [
    "nativeMessaging"
  ]
}