DataPanel如何实现颜色的渐变？

public colorShadow1: LinearGradient =
new LinearGradient([{ color: "#08182431", offset: 0 }, { color: "#08182431", offset: 1 }])
public color1: LinearGradient =
new LinearGradient([{ color: "#65EEC9A3", offset: 0 }, { color: "#FFEF629F", offset: 1 }])

build() {
  Column() {
    Stack() {
      DataPanel({ values: [60], max: 100, type: DataPanelType.Circle })
        .valueColors([this.color1])
        .trackShadow({
          radius: 5,
          colors: [this.colorShadow1],
          offsetX: 15,
          offsetY: 15
        })
    }
  }
  .width("100%")
  .height("100%")
}