ECHARTS is not friendly to RGBA support and needs to be improvedecharts 柱状配置项内容和展示

When the color value is using the RGBA color value, when the mouse points to the bar chart, the bar map disappears, showing only the corresponding value

      option = {
       tooltip: {
          trigger: 'axis',
          axisPointer: { // 坐标轴指示器，坐标轴触发有效
            type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
          }
        },
    grid: {
        left: '3%',
        right: '4%',
        bottom: '3%',
        containLabel: true
    },
        xAxis: [
          {
            type: 'category',
            data: ['资产', '负债', '所有者权益', '收入', '支出', '利润'],
            axisTick: {
              // 刻度
              show: false
            },
            axisLine: {
              // X轴线
              show: false
            }

          }
        ],
        yAxis: [
          {
            type: 'value',
            axisLine: {
              show: false
            },
            axisTick: {
              show: false
            },
            splitLine: { // 网格线
              lineStyle: {
                type: 'dashed' // 设置网格线类型 dotted：虚线   solid:实线
              }
            }

          }
        ],
        series: [
          {
            // name: '直接访问',
            type: 'bar',
            barWidth: '60%',
            data: [10, -52, 200, -38, 390, 330],
            itemStyle: {
              normal: {
                color: function (params) {                  var index_color = params.value
                  if (index_color >= 0) {
                    return '#87cefa'
                  } else {
                    return 'rgba(158,208,255)'
                  }}
              }
            }
          }
        ]
};