Examine source code of Anime Homepage

{
  "manifest_version": 3,
  "name": "Anime Homepage",
  "version": "1.0.0",
  "description": "Replace your new tab page with beautiful anime pictures!",
  "action": {
    "default_popup": "src/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b0fc16c2-795f-4e0f-9b7a-a762a3f75ab3}"
    }
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "topSites",
    "search"
  ],
  "host_permissions": [
    "chrome://newtab/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "icons": {
    "48": "public/48.png",
    "128": "public/128.png"
  }
}