Examine source code of Link preview

{
  "manifest_version": 2,
  "name": "Link preview",
  "description": "Show the content of a link when hovered over it.",
  "version": "1.1.2",
  "homepage_url": "https://jhamadhav.com/anchor-view",
  "icons": {
    "32": "icons/link-32.svg",
    "48": "icons/link-32.svg",
    "96": "icons/link-32.svg"
  },
  "permissions": [
    "activeTab",
    "<all_urls>",
    "webRequest",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "content-styles/main.min.css"
      ],
      "js": [
        "content-scripts/url.js",
        "content-scripts/content-script.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "icons/"
  ]
}