Method update

script.js:538–543

(change, ref_time)

  }

  update(change, ref_time) {
    let rect = this.ctx.measureText(this.name);
    this.width = rect.width;
    this.height = rect.actualBoundingBoxAscent + rect.actualBoundingBoxDescent;
    super.update(change, ref_time);
  }

  render(ctx_out, ref_time) {
    let f = this.getFrame(ref_time);