{
    "meta": {
        "title": "Test world"
    },
    "background": {
        "color": "black"
    },
    "sprites": [
        {
            "type": "rectangle",
            "id": 5,
            "base": {
                "x": 10,
                "y": 10
            },
            "color": "white",
            "width": 100,
            "height": 100
        }
    ]
}