minecraft-assets/assets/minecraft/font/default.json

{
    "providers": [
        {
            "type": "reference",
            "id": "minecraft:include/space"
        },
        {
            "type": "reference",
            "id": "minecraft:include/default"
        },
        {
            "type": "reference",
            "id": "minecraft:include/unifont"
        }
    ]
}