config.json

{
    "height": "600px",
    "width": "1200px",
    "autoResize": true,

    "physics":{
        "enabled": true,

        "barnesHut": {
            "avoidOverlap": 1,
            "theta": 0.1,
            "gravitationalConstant": -10000,
            "centralGravity": 1,
            "springLength": 50,
            "springConstant": 0,
            "damping": 0.5
        },
        "stabilization": {
            "enabled": true,
            "iterations": 1000,
            "updateInterval": 50,
            "onlyDynamicEdges": false,
            "fit": true
        }
      }
}