Google Chartsでフォント変更をガイド通りしても変わらない

chartのtitleのfontを変更したいのですが、できません。
ガイドによるとoptions.titleTextStyle.fontNameを変更すれば変わるはずなのですが。。。

html
1<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>

javascript
1            google.charts.load('current', {
2                packages: ['corechart', 'controls']
3            });
4            google.charts.setOnLoadCallback(controlsAndDashboards);
5
6            function controlsAndDashboards() {
7
8                var data = new google.visualization.DataTable();
9                data.addColumn('date', '日付');
10                data.addColumn('number', '数値');
11                var row = []
12                for (var day = 1; day < 100; ++day) {
13                    var date = new Date(2015, 0, day);
14                    row.push([date,Math.floor(Math.random() * 5)]);
15                }
16                data.addRows(row);
17                var dashboard = new google.visualization.Dashboard(
18                document.getElementById('dashboard'));
19
20                var chartRangeFilter = new google.visualization.ControlWrapper({
21                    controlType: 'ChartRangeFilter',
22                    containerId: 'control',
23                    options: {
24                        filterColumnIndex: 0,
25                        ui: {
26                            chartType: 'AreaChart',
27                            chartOptions: {
28                                chartArea: {
29                                    width: '95%',
30                                    height: '100%'
31                                }
32                            }
33                        }
34                    },
35                    state: {
36                        range: {
37                            end: new Date(row[row.length - 1][0]),
38                            start: new Date(row[row.length -30][0])
39                        }
40                    }
41                });
42
43                var columnChart = new google.visualization.ChartWrapper({
44                    chartType: 'ColumnChart',
45                    containerId: 'timeChart',
46                    options: {
47                        title: "題名titleタイトル123",
48                        titleTextStyle: {
49                            color: "red",
50                            fontName: "メイリオ"
51                        }
52                    }
53                });
54
55                dashboard.bind(chartRangeFilter, columnChart);
56                dashboard.draw(data);
57
58            }