Examine source code of Sleezzi Live

{
  "manifest_version": 3,
  "name": "__MSG_name__",
  "description": "__MSG_description__",
  "version": "1.0.1",
  "author": "Sleezzi",
  "homepage_url": "https://twitch.tv/Sleezzi",
  "default_locale": "fr",
  "action": {
    "default_title": "Sleezzi - Offline",
    "default_popup": "/popup/root.html?tab=popup"
  },
  "options_page": "/popup/root.html?tab=settings&mode=fullscreen",
  "icons": {
    "16": "/assets/extension/16.png",
    "32": "/assets/extension/32.png",
    "48": "/assets/extension/48.png",
    "128": "/assets/extension/128.png"
  },
  "permissions": [
    "notifications",
    "storage",
    "alarms"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@sleezzi.fr",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}