Examine source code of Development Assistant

{
  "manifest_version": 2,
  "name": "Dev Assistant",
  "version": "1.0.0",
  "description": "Assistant de développement pour extensions Firefox.",
  "permissions": [
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "Dev Assistant"
  },
  "icons": {
    "48": "icons/icon-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "development-assistant@shortimax",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}