text: const FourColorsASCIICanvas = require('four-color-ascii-canvas');
  
  const WIDTH = 160;
  const HEIGHT = 144;
  
  const palette = process.argv[2];
  const canvas = new FourColorsASCIICanvas(WIDTH, HEIGHT, palette && { palette });
  
  process.on('message', m => {
      canvas.paint(m.value.data);
  });
  