Examine source code of Speed Dial New Tab

{
  "manifest_version": 3,
  "name": "Speed Dial New Tab",
  "version": "1.0.3",
  "browser_specific_settings": {
    "gecko": {
      "id": "{1f2a5a27-46cf-47ce-971e-4296aaa0c775}"
    }
  },
  "description": "Speed dial for your new tab page",
  "action": {
    "default_icon": "logo.png",
    "default_title": "Speed Dial New Tab"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "chrome_settings_overrides": {
    "homepage": "index.html"
  },
  "permissions": [
    "bookmarks",
    "storage",
    "unlimitedStorage",
    "tabHide"
  ],
  "host_permissions": [
    "<all_urls>"
  ]
}