Examine source code of Mes Post-it

{
  "manifest_version": 2,
  "name": "Mes Post-it",
  "version": "1.0",
  "description": "Une extension pour créer des post-it personnalisés.",
  "author": "Jakobel",
  "homepage_url": "https://jakobel.com",
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_title": "Mes Post-it",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "/icons/post-it-48.png",
      "64": "/icons/post-it-64.png",
      "128": "/icons/post-it-128.png",
      "256": "/icons/post-it-256.png",
      "512": "/icons/post-it-512.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox.postit.contact@jakobel.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "icons": {
    "48": "/icons/post-it-48.png",
    "64": "/icons/post-it-64.png",
    "128": "/icons/post-it-128.png",
    "256": "/icons/post-it-256.png",
    "512": "/icons/post-it-512.png"
  }
}