num of LEDs needs to be modulo 3

[antonmeyer]

there is a bug in: for (int q=0; q < 3; q++) { for (int i=0; i < NUM_LEDS; i=i+3) { int pos = i+q; leds[pos] = c; if NUM_LEDS is 50 you end up in 48 + 2 = 50 for i = 48 q = 2 which writes to an position outside the array or cause an exception you better check for (i+q) < NUM_LEDS

this limitation / bug is inherried from examples