Examine source code of Scrinium Clipper

{
  "manifest_version": 3,
  "name": "Scrinium Clipper",
  "version": "0.4.13",
  "description": "One click saves the page you're reading into your Scrinium archive.",
  "action": {
    "default_title": "Save to Scrinium",
    "default_icon": {
      "48": "icon-48.png",
      "96": "icon-96.png",
      "128": "icon-128.png"
    },
    "default_popup": "popup.html"
  },
  "icons": {
    "48": "icon-48.png",
    "96": "icon-96.png",
    "128": "icon-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "setup.html",
    "open_in_tab": true
  },
  "permissions": [
    "activeTab",
    "tabs",
    "scripting",
    "storage",
    "unlimitedStorage",
    "identity"
  ],
  "host_permissions": [
    "https://api.apple-cloudkit.com/*"
  ],
  "incognito": "not_allowed",
  "browser_specific_settings": {
    "gecko": {
      "id": "clipper@getscrinium.app",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "browsingActivity",
          "websiteActivity",
          "websiteContent"
        ]
      }
    }
  }
}