Examine source code of Fresh Speed Dial

{
  "manifest_version": 3,
  "name": "Speed Dial New Tab",
  "version": "1.0.0",
  "description": "Replaces the Firefox new tab speed dials with your own customizable shortcuts, keeping the default new tab background and wallpaper.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "speed-dial-newtab@local.ext",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "chrome_settings_overrides": {
    "homepage": "newtab.html"
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "<all_urls>",
    "https://picsum.photos/*"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  }
}