public void generateColorWheel() {
      for (int index = 0; index < myPixels.length; index++) {
        if (myAlphas[index] != 0) {
          myPixels[index] = myAlphas[index]
                            | 0xffffff
                              & Color.HSBtoRGB(myHues[index],
                                               mySat[index], myBrightness);
        }
      }
      newPixels();
    }
public void generateColorWheel()