Examine source code of StampShot

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "1.3",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "{0e804ee7-06ad-401c-96af-5758022c5caa}"
    }
  },
  "permissions": [
    "activeTab",
    "downloads",
    "tabs",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": "stampshot.svg"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "stampshot.svg"
  }
}