One more cleanup for invert.
One more cleanup for invert.

Margravegit/rainbowraceway,tykune21/rpi_ws281x,Margravegit/rainbowraceway,weidnerm/pi-ws2812,jgarff/rpi_ws281x,Margravegit/rainbowraceway,weidnerm/pi-ws2812,weidnerm/pi-ws2812,tykune21/rpi_ws281x,weidnerm/pi-ws2812,tykune21/rpi_ws281x,jgarff/rpi_ws281x,weidnerm/pi-ws2812,jgarff/rpi_ws281x