Included vegalite JS library not rendering titles correctly

[saptarshiguha]

Hello,
I produced a schema (see below) which when rendered in [https://vega.github.io/editor/] produced a steelblue title. However when I use vegalite in R, apart from title and anchor the other options are not respected( the title bit is at the bottom)

Is this because vegalite is using an older version of the JS library?

	  {
  "description": "",
  "data": {
    "values": [
      {
        "date": "2018-05-17",
        "dau": " 29.67 MM",
        "PctOn": "25.913877"
      },
      {
        "date": "2018-05-18",
        "dau": " 37.24 MM",
        "PctOn": "33.902391"
      },
      {
        "date": "2018-05-19",
        "dau": " 35.04 MM",
        "PctOn": "43.948684"
      },
      {
        "date": "2018-05-20",
        "dau": " 38.08 MM",
        "PctOn": "53.632520"
      },
      {
        "date": "2018-05-21",
        "dau": " 55.75 MM",
        "PctOn": "53.216210"
      },
      {
        "date": "2018-05-22",
        "dau": " 64.22 MM",
        "PctOn": "57.962003"
      },
      {
        "date": "2018-05-23",
        "dau": " 67.28 MM",
        "PctOn": "62.473247"
      },
      {
        "date": "2018-05-24",
        "dau": " 69.13 MM",
        "PctOn": "65.033222"
      },
      {
        "date": "2018-05-25",
        "dau": " 67.89 MM",
        "PctOn": "67.402715"
      },
      {
        "date": "2018-05-26",
        "dau": " 49.28 MM",
        "PctOn": "70.224833"
      },
      {
        "date": "2018-05-27",
        "dau": " 48.35 MM",
        "PctOn": "71.474268"
      },
      {
        "date": "2018-05-28",
        "dau": " 69.10 MM",
        "PctOn": "68.940195"
      },
      {
        "date": "2018-05-29",
        "dau": " 72.66 MM",
        "PctOn": "69.603291"
      },
      {
        "date": "2018-05-30",
        "dau": " 73.79 MM",
        "PctOn": "70.570328"
      },
      {
        "date": "2018-05-31",
        "dau": " 71.42 MM",
        "PctOn": "71.762926"
      },
      {
        "date": "2018-06-01",
        "dau": " 69.72 MM",
        "PctOn": "72.386425"
      },
      {
        "date": "2018-06-02",
        "dau": " 52.11 MM",
        "PctOn": "74.930149"
      },
      {
        "date": "2018-06-03",
        "dau": " 51.35 MM",
        "PctOn": "75.788678"
      },
      {
        "date": "2018-06-04",
        "dau": " 75.45 MM",
        "PctOn": "72.267049"
      },
      {
        "date": "2018-06-05",
        "dau": " 76.30 MM",
        "PctOn": "72.873080"
      },
      {
        "date": "2018-06-06",
        "dau": " 76.04 MM",
        "PctOn": "73.506603"
      },
      {
        "date": "2018-06-07",
        "dau": "102.98 MM",
        "PctOn": "78.148503"
      },
      {
        "date": "2018-06-08",
        "dau": " 85.08 MM",
        "PctOn": "76.292698"
      },
      {
        "date": "2018-06-09",
        "dau": " 58.95 MM",
        "PctOn": "77.844988"
      },
      {
        "date": "2018-06-10",
        "dau": " 55.66 MM",
        "PctOn": "78.892435"
      },
      {
        "date": "2018-06-11",
        "dau": " 80.09 MM",
        "PctOn": "75.640874"
      },
      {
        "date": "2018-06-12",
        "dau": " 79.10 MM",
        "PctOn": "75.694908"
      },
      {
        "date": "2018-06-13",
        "dau": " 78.93 MM",
        "PctOn": "75.673846"
      },
      {
        "date": "2018-06-14",
        "dau": " 76.87 MM",
        "PctOn": "75.801450"
      },
      {
        "date": "2018-06-15",
        "dau": " 70.86 MM",
        "PctOn": "76.380044"
      },
      {
        "date": "2018-06-16",
        "dau": " 51.44 MM",
        "PctOn": "79.324844"
      },
      {
        "date": "2018-06-17",
        "dau": " 52.05 MM",
        "PctOn": "80.192580"
      },
      {
        "date": "2018-06-18",
        "dau": " 77.34 MM",
        "PctOn": "76.921065"
      },
      {
        "date": "2018-06-19",
        "dau": " 77.77 MM",
        "PctOn": "76.500504"
      },
      {
        "date": "2018-06-20",
        "dau": " 76.73 MM",
        "PctOn": "76.698764"
      },
      {
        "date": "2018-06-21",
        "dau": " 76.60 MM",
        "PctOn": "76.738632"
      },
      {
        "date": "2018-06-22",
        "dau": " 72.63 MM",
        "PctOn": "77.297820"
      },
      {
        "date": "2018-06-23",
        "dau": " 53.88 MM",
        "PctOn": "79.685727"
      },
      {
        "date": "2018-06-24",
        "dau": " 52.59 MM",
        "PctOn": "80.643143"
      },
      {
        "date": "2018-06-25",
        "dau": " 79.21 MM",
        "PctOn": "77.450555"
      },
      {
        "date": "2018-06-26",
        "dau": " 79.17 MM",
        "PctOn": "75.230673"
      },
      {
        "date": "2018-06-27",
        "dau": " 72.08 MM",
        "PctOn": "67.394597"
      },
      {
        "date": "2018-06-28",
        "dau": " 64.31 MM",
        "PctOn": "62.763818"
      },
      {
        "date": "2018-06-29",
        "dau": " 58.21 MM",
        "PctOn": "58.219316"
      },
      {
        "date": "2018-06-30",
        "dau": " 37.96 MM",
        "PctOn": "52.978922"
      },
      {
        "date": "2018-07-01",
        "dau": " 32.61 MM",
        "PctOn": "48.178123"
      },
      {
        "date": "2018-07-02",
        "dau": " 44.96 MM",
        "PctOn": "43.791527"
      },
      {
        "date": "2018-07-03",
        "dau": " 39.52 MM",
        "PctOn": "38.465281"
      },
      {
        "date": "2018-07-04",
        "dau": " 33.12 MM",
        "PctOn": "34.018666"
      },
      {
        "date": "2018-07-05",
        "dau": " 30.19 MM",
        "PctOn": "30.651863"
      },
      {
        "date": "2018-07-06",
        "dau": " 25.58 MM",
        "PctOn": "24.091330"
      },
      {
        "date": "2018-07-07",
        "dau": " 17.06 MM",
        "PctOn": "22.994022"
      },
      {
        "date": "2018-07-08",
        "dau": " 15.69 MM",
        "PctOn": "23.419445"
      },
      {
        "date": "2018-07-09",
        "dau": " 22.69 MM",
        "PctOn": "21.995777"
      },
      {
        "date": "2018-07-10",
        "dau": " 20.79 MM",
        "PctOn": "20.105509"
      },
      {
        "date": "2018-07-11",
        "dau": " 17.21 MM",
        "PctOn": "16.791938"
      },
      {
        "date": "2018-07-12",
        "dau": " 13.36 MM",
        "PctOn": "13.507518"
      },
      {
        "date": "2018-07-13",
        "dau": " 10.65 MM",
        "PctOn": "11.555462"
      },
      {
        "date": "2018-07-14",
        "dau": "  7.49 MM",
        "PctOn": "11.462085"
      },
      {
        "date": "2018-07-15",
        "dau": "  6.85 MM",
        "PctOn": "11.006476"
      },
      {
        "date": "2018-07-16",
        "dau": "  9.54 MM",
        "PctOn": " 9.903564"
      },
      {
        "date": "2018-07-17",
        "dau": "  8.61 MM",
        "PctOn": " 8.806361"
      },
      {
        "date": "2018-07-18",
        "dau": "  7.75 MM",
        "PctOn": " 8.020007"
      },
      {
        "date": "2018-07-19",
        "dau": "  7.04 MM",
        "PctOn": " 7.439555"
      },
      {
        "date": "2018-07-20",
        "dau": "  6.19 MM",
        "PctOn": " 6.955740"
      },
      {
        "date": "2018-07-21",
        "dau": "  4.62 MM",
        "PctOn": " 7.131539"
      },
      {
        "date": "2018-07-22",
        "dau": "  4.43 MM",
        "PctOn": " 7.147067"
      },
      {
        "date": "2018-07-23",
        "dau": "  6.10 MM",
        "PctOn": " 6.477514"
      },
      {
        "date": "2018-07-24",
        "dau": "  5.66 MM",
        "PctOn": " 6.008673"
      },
      {
        "date": "2018-07-25",
        "dau": "  5.30 MM",
        "PctOn": " 5.676079"
      },
      {
        "date": "2018-07-26",
        "dau": "  4.97 MM",
        "PctOn": " 5.395066"
      },
      {
        "date": "2018-07-27",
        "dau": "  4.46 MM",
        "PctOn": " 5.117397"
      },
      {
        "date": "2018-07-28",
        "dau": "  3.37 MM",
        "PctOn": " 5.283396"
      },
      {
        "date": "2018-07-29",
        "dau": "  3.24 MM",
        "PctOn": " 5.311312"
      },
      {
        "date": "2018-07-30",
        "dau": "  4.67 MM",
        "PctOn": " 4.999567"
      },
      {
        "date": "2018-07-31",
        "dau": "  4.50 MM",
        "PctOn": " 4.759845"
      },
      {
        "date": "2018-08-01",
        "dau": "  4.29 MM",
        "PctOn": " 4.577594"
      },
      {
        "date": "2018-08-02",
        "dau": "  4.02 MM",
        "PctOn": " 4.353081"
      },
      {
        "date": "2018-08-03",
        "dau": "  3.69 MM",
        "PctOn": " 4.218323"
      },
      {
        "date": "2018-08-04",
        "dau": "  2.72 MM",
        "PctOn": " 4.295332"
      },
      {
        "date": "2018-08-05",
        "dau": "  2.61 MM",
        "PctOn": " 4.338866"
      },
      {
        "date": "2018-08-06",
        "dau": "  3.75 MM",
        "PctOn": " 4.095082"
      },
      {
        "date": "2018-08-07",
        "dau": "  3.59 MM",
        "PctOn": " 3.881396"
      },
      {
        "date": "2018-08-08",
        "dau": "  3.44 MM",
        "PctOn": " 3.696881"
      },
      {
        "date": "2018-08-09",
        "dau": "  3.29 MM",
        "PctOn": " 3.284490"
      },
      {
        "date": "2018-08-10",
        "dau": "  3.01 MM",
        "PctOn": " 2.908277"
      },
      {
        "date": "2018-08-11",
        "dau": "  2.21 MM",
        "PctOn": " 3.219112"
      },
      {
        "date": "2018-08-12",
        "dau": "  2.13 MM",
        "PctOn": " 3.342810"
      },
      {
        "date": "2018-08-13",
        "dau": "  3.08 MM",
        "PctOn": " 3.188096"
      }
    ]
  },
  "mark": "area",
  "encoding": {
    "x": {
      "field": "date",
      "type": "temporal"
    },
    "y": {
      "field": "PctOn",
      "type": "quantitative"
    }
  },
  "transform": [],
  "title": {
    "text": "fish",
    "anchor": "start",
    "color": "steelblue",
    "fontSize": 5,
    "fontWeight": 100
  }
}