Examine source code of Add to Pinry

{
  "name": "Add to Pinry",
  "version": "0.3.0",
  "description": "Pins images from current page to a Pinry installation.",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "{d9a16cee-f53a-40ba-9f25-f8a76a91b4fb}"
    }
  },
  "icons": {
    "48": "ico-48.png",
    "128": "ico-128.png"
  },
  "permissions": [
    "contextMenus",
    "activeTab",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_icon": "ico-128.png",
    "default_title": "Add to Pinry"
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  }
}