tweaking for loops

foo.cpp

//    
//    *********************************
//    ****   TRYING TO FIGURE OUT  ****
//    ****  A PULSING PATTERN THAT ****
//    ****    CHANGES COLOR BY     ****
//    ***      NESTING LOOPS      *****
//    *********************************
//
//    ******************
//    ***  UNTESTED  ***
//    ******************
//
#include "FastLED.h"
#define DATA_PIN 8
//#define CLK_PIN 4
#define NUM_LEDS 12
//
CRGB leds[NUM_LEDS];
//
// *** NOTE TO SELF
// Might not need the below three lines once sketch is tweaked.
int pulseFade = 5;  // Set the amount to fade I usually do 5, 10, 15, 20, 25 etc even up to 255.
int pulseBrightness = 0;
int pulseHue = 0;  // Sets the initial color for the pulse effect to red.
//
void setup()
{
  delay(3000); // 3 second delay for recovery
  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
}  // END OF VOID SETUP

void loop()
{
  static int pulseHue = 0;

  if(pulseHue >= 256) { pulseHue = 0; }
  
  for(int i = 0; i < NUM_LEDS; i++ )
  {
    leds[i] = CHSV(pulseHue, 255, 255);
    leds[i].fadeLightBy(pulseBrightness);
  }

  pulseBrightness = pulseBrightness + pulseFade;
  // reverse the direction of the fading at the ends of the fade:
  if(pulseBrightness == 0 || pulseBrightness == 255)
  {
    pulseFade = -pulseFade ;
  }
  
  FastLED.show();

  delay(20);  // This delay sets speed of the fade.

  pulseHue += 32;
}