#include <FastLED.h>
#define LED_PIN     7
#define NUM_LEDS    60
#define BRIGHNESS   25

CRGB leds[NUM_LEDS];
//--------------------


void setup() {
  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(BRIGHNESS);
//--------------------
  pinMode(8, INPUT_PULLUP);
  pinMode(13, OUTPUT);
}
void loop() {
  bool btnState = digitalRead(8);

    if (btnState == HIGH){
      digitalWrite(13, HIGH);

      for (int i; i < NUM_LEDS; i++){
          leds[i] = CHSV(0, 255, 255);
      }
    } else {
      digitalWrite(13, LOW);

      for (int i; i < NUM_LEDS; i++){
        leds[i] = CHSV(160, 255, 255);
      }
    }

    FastLED.show();

}