code: private Color getColorForEntropy(double entropy) {
  		assert entropy <= 1;
  		assert entropy >= 0;
  		Color entropyColor = colorMap.get(ENTROPY);
  		float[] hsbvals = new float[3];
  		Color.RGBtoHSB(entropyColor.getRed(), entropyColor.getGreen(),
  				entropyColor.getBlue(), hsbvals);
  		float entropyHue = hsbvals[0];
  		float saturation = hsbvals[1];
  		float brightness = (float) entropy;
  		return Color.getHSBColor(entropyHue, saturation, brightness);
  		// int col = (int) (entropy * 255);
  		// return new Color(col, col, col);
  	}
docs: Creates a color instance based on a given entropy.
  
  @param entropy
  value between 0 and 1
  @return Color for given entropy