Examine source code of ASINSnap — Amazon Video & Image Downloader

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "1.2",
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "permissions": [
    "activeTab",
    "downloads",
    "offscreen",
    "scripting",
    "sidePanel",
    "storage",
    "webRequest"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  },
  "host_permissions": [
    "https://*.amazon.com/*",
    "*://*.media-amazon.com/*",
    "https://*.amazon.co.uk/*",
    "https://*.amazon.co.jp/*",
    "https://*.amazon.de/*",
    "https://*.amazon.fr/*",
    "https://*.amazon.ca/*",
    "https://*.amazon.com.au/*",
    "https://*.amazon.in/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.amazon.com/dp/*",
        "https://*.amazon.co.uk/dp/*",
        "https://*.amazon.co.jp/dp/*",
        "https://*.amazon.de/dp/*",
        "https://*.amazon.fr/dp/*",
        "https://*.amazon.ca/dp/*",
        "https://*.amazon.com.au/dp/*",
        "https://*.amazon.in/dp/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "side_panel": {
    "default_path": "popup.html"
  },
  "action": {
    "default_title": "ASINSnap",
    "default_icon": {
      "16": "images/icon16.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    }
  },
  "background": {
    "service_worker": "background.js"
  }
}