FastLED Meteor with glittering trail

gistfile1.txt

#include "FastLED.h" // FastLED library. Please use the latest version

// Fixed definitions. Cannot be changed interactively
#define LED_DATA 3 // Data pin
#define LED_CLOCK 4 // Clock pin
#define COLOR_ORDER BGR // GRB for WS2812 and BGR for APA102
#define LED_TYPE APA102 // Using APA102, WS2812, WS2801 - don't forget to change LEDS.addLeds
#define NUM_LEDS 234 // Number of LEDs set higher than strip length to have trail vanish fully


int head_led = 0;

uint8_t max_bright = 32; // Overall brightness

struct CRGB leds[NUM_LEDS]; // Initialise LED array


void setup() {
  
  delay(1000);
  
  LEDS.addLeds<LED_TYPE, LED_DATA, LED_CLOCK, COLOR_ORDER>(leds, NUM_LEDS); // For WS2801 or APA102
  
  FastLED.setBrightness(max_bright);
  
}


void loop()

{

  EVERY_N_MILLISECONDS(30)
  
  {
  
    fadeToBlackBy(leds, NUM_LEDS, 5); // n/256 = trail length; smaller number = longer trail
    leds[head_led] = CHSV(0, 0, random8(96,255)); // set hue, saturation, brightness
    
    head_led = head_led + 1; // move the head LED one position forward
    if(head_led == NUM_LEDS){ head_led = 0; }

    FastLED.show();
  
  }
  
}