Examine source code of Simple Screenshot Tool

{
  "manifest_version": 3,
  "name": "Simple Screenshot Tool",
  "version": "3.0",
  "description": "Erstellt einen Screenshot den man Beschneiden und mit Pfeilen, Markierungen und Text versehen kann.",
  "permissions": [
    "activeTab",
    "storage",
    "clipboardWrite"
  ],
  "background": {
    "scripts": [
      "lib/browser-polyfill.js",
      "background.js"
    ]
  },
  "action": {
    "default_title": "Screenshot in neuem Fenster öffnen"
  },
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "screenshot-tool@dein-name.org"
    }
  }
}