Examine source code of Instagram Grabber

{
  "name": "Instagram Grabber",
  "author": "bensaine",
  "version": "1.4",
  "description": "Easily download Instagram images and videos.",
  "content_scripts": [
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "downloads"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6dde3736-5e62-44a5-bff0-43ff7572ccff}"
    }
  },
  "manifest_version": 3
}