 
 void cylon(CRGB colorOne, CRGB colorTwo) {
   for (int i = 0; i < NUM_LEDS; i++) {
-		// Set the i'th led to red 
+		// Set the i'th led to colorOne 
 		leds[i] = colorOne;
 		// Show the leds
 		FastLED.show();


void alternate(CRGB colorOne, CRGB colorTwo) {
  for(int i = 0; i < NUM_LEDS; i++) {
    
    if ((i & 1) == 0) { // For even numbered LEDs...
      leds[i] = colorOne;
    }


	// Now go in the other direction.  
	for(int i = NUM_LEDS-1; i >= 0; i--) {
		// Set the i'th led to colorTwo 
		leds[i] = colorTwo;
		// Show the leds
		FastLED.show();
