I see that FastLED has a clearData method. I assumed that this was intended to clear the data in the array that is passed to the addLeds call during setup (equivalent to memset8( leds, 0, NUM_LEDS * sizeof(CRGB))). In my testing though, it doesn’t seem to do anything.
Am I misunderstanding its purpose or perhaps using it incorrectly? I ended up writing my own code (easy enough) but if this is supposed to be working, but isn’t, I figured someone would like to know.