example-style-mapbox-source.json

{
    "version": 8,
    "sources": {
        "mapbox": {
            "type": "vector",
            "url": "mapbox://mapbox.mapbox-streets-v7"
        }
    },
    "layers": [
        {
            "id": "background",
            "type": "background",
            "paint": {
                "background-color": "#dedede"
            }
        },
        {
            "id": "water",
            "type": "fill",
            "source": "mapbox",
            "source-layer": "water",
            "paint": {
                "fill-color": "#a0cfdf"
            }
        },
        {
            "layout": {
                "line-cap": "round",
                "line-join": "round"
            },
            "filter": ["all", ["==", "$type", "LineString"], ["all", ["<=", "admin_level", 2], ["==", "maritime", 0]]],
            "type": "line",
            "source": "mapbox",
            "id": "admin_country",
            "paint": {
                "line-color": "#8b8a8a",
                "line-width": {
                    "base": 1.3,
                    "stops": [[3, 0.5], [22, 15]]
                }
            },
            "source-layer": "admin"
        }
    ]
}