     g: 0.5,
            b: 0.75
          }
        }),
        'chroma-key.png': new etro.effect.ChromaKey({
          target: etro.parseColor('green'),
          threshold: 100
        }),
        'gaussian-blur-horizontal.png': new etro.effect.GaussianBlurHorizontal({ radius: 5 }),
        'gaussian-blur-vertical.png': new etro.effect.GaussianBlurVertical({ radius: 5 }),
        'grayscale.png': new etro.effect.Grayscale(),
        'pixelate.png': new etro.effect.Pixelate({ pixelSize: 3 }),
        'sha