void final_0(String color, int duration)
    {
        int delay_ms = 50; // ms
        int delay_0_ms = 10; // ms
        unsigned long timer = millis();

        CRGB parsed_color = get_color(color);
        while (millis() - timer < duration)
        {
            for (int j = 0; j < NUM_LEDS; j++)
            {
                leds[j] = parsed_color;
                FastLED.show();
                delay(delay_0_ms);
            }
            turn_off_leds();
            delay(delay_ms);
        }
    }