[
  {
    "eccharts_layer": "cds_sp_spread",
    "prefered_units": "hPa",
    "styles": [
      "sh_magenta_f01t50"
    ],
    "match": [
      {
        "paramId": "134",
        "shortName": "sp",
        "type": "es"
      }
    ]
  }
]