相关疑难解决方法(0)

如何更改Google Chart Tools LineChart中注释文本的颜色？

这是一个例子

google.load('visualization', '1', {packages: ['corechart']});
google.setOnLoadCallback(drawChart);

function drawChart() {
    var data = new google.visualization.DataTable();      
    data.addColumn('date', 'Date');
    data.addColumn('number', 'Sales');
    data.addColumn({id: 'title', label: 'Title', type: 'string', role: 'annotation'});
    data.addRows([
        [new Date(2012, 3, 5), 80, null],
        [new Date(2012, 3, 12), 120, 'New Product'],
        [new Date(2012, 3, 19), 80, null],
        [new Date(2012, 3, 26), 65, null],
        [new Date(2012, 4, 2), 70, null],
    ]);

    var options = {
        title: 'Sales by Week',
        displayAnnotations: true,
        hAxis: {title: 'Date', 
                titleTextStyle: {color: 'grey'}},
        colors: …