如何自定义popup弹窗的布局？

@Entry
@Component
struct Index {
  @State customPopup: boolean = false
  // popup构造器定义弹框内容
  @Builder popupBuilder() {
    Row({ space: 2 }) {
      Image($r("app.media.icon")).width(24).height(24).margin({ left: 5 })
      Text('This is Custom Popup').fontSize(15)
    }.width(200).height(50).padding(5)
  }
  build() {
    Column() {
      Button('CustomPopupOptions')
        .position({x:100,y:200})
        .onClick(() => {
          this.customPopup = !this.customPopup
        })
        .bindPopup(this.customPopup, {
          builder: this.popupBuilder, // 气泡的内容
          placement:Placement.Bottom, // 气泡的弹出位置
          popupColor:Color.Pink, // 气泡的背景色
          onStateChange: (e) => {
            console.info(JSON.stringify(e.isVisible))
            if (!e.isVisible) {
              this.customPopup = false
            }
          }
        })
    }
    .height('100%')
  }
}

@State handlePopup: boolean = false //popup的显示状态
build() {
  Column() {
    Button("点我")
      .onClick(() => {
        this.handlePopup = !this.handlePopup
      })
      .bindPopup(this.handlePopup, {
        builder: this.myPopBuilder(), onStateChange: (e) => {
          //监听popup的显示状态并更新到@state的状态变量上
          this.handlePopup = e.isVisible
        }
      })
  }.justifyContent(FlexAlign.Center)
  .width("100%")
  .height("100%")
}
//自定义弹窗组件
@Builder
myPopBuilder() {
  Column() {
    Text("Item01")
      .padding(10)
    Text("Item02")
      .padding(10)
  }.width(120)
}