Volume图如何根据需要调整borderColor?echarts 柱状配置项内容和展示

我希望绿色的柱子是绿色的边，空心的为红边，不知如何可以实现？

      var data = [220, 182, 191, 234, 290, 330, 310];
var data1=[],colorList,BorderColor;
for(var i=0;i<data.length;i++){
    if(data[i-1]>data[i]){
        colorList = '#75d75c';
        BorderColor = '#75d75c';
    }else{
        colorList = 'transparent';
        BorderColor = '#dd5d36';
    }
    data1[i-1] = {
        value:data[i-1],
        itemStyle: {
            normal:{
                color:colorList,
                borderColor: BorderColor,
                borderWidth: 4
            }
        }
    };
}
data1[data.length-1] = {
    value:data.pop(),
    itemStyle: {
        normal:{
            color:'transparent',
            borderColor: '#dd5d36',
            borderWidth: 4
        }
    }
};
var data = [{}]
option = {
    title: {
        text: 'Awesome Chart'
    },
    xAxis: {
        data: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']
    },
    yAxis: {},
    series: [{
        type: 'bar',
        data:data1,
    }]
};