Examine source code of Rocket Launch Schedule

{
  "name": "Rocket Launch Schedule",
  "description": "List of all upcoming rocket launches",
  "version": "23.2.13",
  "manifest_version": 3,
  "action": {
    "default_popup": "popup.html",
    "default_icon": "img/icon_16.png"
  },
  "icons": {
    "16": "img/icon_16.png",
    "48": "img/icon_48.png",
    "128": "img/icon_128.png"
  },
  "permissions": [
    "storage",
    "https://ll.thespacedevs.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "login@mariogarrido.pt"
    }
  }
}