return { ...props.tooltip };

        return { offset: new Vector2(8, 8), ...props.tooltip };

      this._staleProps.args.markForceUpdate(this);

      // this._staleProps.args.markForceUpdate(this);
      const position = new Vector2(this.container.worldTransform.tx, this.container.worldTransform.ty);

        const next = { ...prev, visible: true, text: this.state.descriptionText };
        next.position = new Vector2(this.container.worldTransform.tx, this.container.worldTransform.ty);
        // TODO(bowei): what about position??

        const next = { ...prev, visible: true, text: this.state.descriptionText, position };

      this._staleProps.args.markForceUpdate(this);

      // this._staleProps.args.markForceUpdate(this);

    this.container.addListener('pointermove', (event: Pixi.InteractionEvent) => {
      // this._staleProps.args.markForceUpdate(this);
      // source: https://www.iwm-tuebingen.de/iwmbrowser/lib/pixi/tooltip.js
      const localPosition = event.data.getLocalPosition(this.container);
      const position = new Vector2(this.container.worldTransform.tx, this.container.worldTransform.ty);
      this._staleProps.tooltipUpdaters.position.enqueueUpdate((prev) => {
        return position.add(localPosition);
      });
    })

  offset: Vector2,

    this.container.position = PixiPointFrom(props?.position || Vector2.Zero);

    this.container.position = PixiPointFrom(props.offset.add(props?.position || Vector2.Zero));