#include <FastLED.h>
#define NUM_LEDS 144
#define DATA_PIN 6

CRGB leds[NUM_LEDS];

void setup() {
  FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(50);

  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB::Red;
  }
  FastLED.show();
}

void loop() {}