如何设置波浪淹没label后label的字体颜色

[ShaoGuanHotel]

         var options= {
                    series: [{
                        type: 'liquidFill',
                        data: [{
                            name: 'demo',
                            value: 0.6,
                            itemStyle: {
                                normal: {
                                    color: 'rgb(12,78,117)'
                                }
                            }
                        }, {
                            value: 0.6,
                            itemStyle: {
                                normal: {
                                    color: 'rgb(0,170,255)'
                                }
                            }
                        }],
                        radius: '70%',
                        outline: {
                            show: false
                        },
                        label: {
                            normal: {
                                formatter: '{b}',
                                fontSize: 20,
                                color: 'yellow'
                            }
                        },
                        backgroundStyle: {
                            color: 'rgb(9,34,57)',
                            borderColor: 'rgb(0,170,255)',
                            borderWidth: 1
                        }
                    }]
                };

[Ovilia]

label.normal.insideColor