HarmonyOS 当自定义组件使用大括号传递插槽时无法传递样式

@Component  
export struct Son {  
  @Prop title: string = 'title'  
  @Prop textWidth: number = 10;  
  
  @Builder  
  defaultSlot() {  
  }  
  
  @BuilderParam imageSlot: () => void = this.defaultSlot  
  build() {  
    Column() {  
      Text(this.title).width(this.textWidth).backgroundColor(Color.Grey);  
      this.imageSlot()  
    }  
  }  
}  
  
@Entry  
@Component  
struct Parent {  
  private title = '我是title'  
  
  @Builder  
  img() {  
    Image($r('app.media.icon')).width('24').height('24')  
    Text('xx').fontColor(Color.Orange).fontSize(20);  
  }  
  
  build() {  
    Column() {  
      Son({ title: this.title, imageSlot: this.img, textWidth: 50 }).width("200").backgroundColor(Color.Pink)  
    }  
  }  
}