text: Caman.Filter.register("hemingway", function () {
    this.greyscale();
    this.contrast(10);
    this.gamma(0.9);
    this.newLayer(function () {
      this.setBlendingMode("multiply");
      this.opacity(40);
      this.copyParent();
      this.filter.exposure(15);
      this.filter.contrast(15);
      return this.filter.channels({
        green: 10,
        red: 5
      });
    });
    this.sepia(30);
    this.curves('rgb', [0, 10], [120, 90], [180, 200], [235, 255]);
    this.channels({
      red: 5,
      green: -2
    });
    return this.exposure(15);
  });