[
  {
    "eccharts_layer": "wbpt850",
    "styles": [
      "sh_all_fM52t48i4",
      "sh_all_fM64t52i4",
      "ct_red_i2_dash",
      "ct_black_i2_solid",
      "ct_black_i4_solid",
      "sh_all_fM52t48i4_light",
      "ct_multicolour_fM20t40i2",
      "sh_gry_fM72t56lst",
      "transparent_zero_blue"
    ],
    "match": [
      {
        "levelist": [
          "850"
        ],
        "paramId": "3",
        "shortName": "pt"
      },
      {
        "long_name": "Potential temperature"
      }
    ]
  }
]