flet-build-template/{{cookiecutter.out_dir}}/web/assets/FontManifest.json

[
    {
        "family": "MaterialIcons",
        "fonts": [
            {
                "asset": "fonts/MaterialIcons-Regular.otf"
            }
        ]
    },
    {
        "family": "packages/cupertino_icons/CupertinoIcons",
        "fonts": [
            {
                "asset": "packages/cupertino_icons/assets/CupertinoIcons.ttf"
            }
        ]
    }
]