Support inverting.
Support inverting.

wrhm/ThisIsARaspberryPiProjectWhichTakesAudioSignalsAndTurnsThemIntoLights,wrhm/ThisIsARaspberryPiProjectWhichTakesAudioSignalsAndTurnsThemIntoLights,wrhm/ThisIsARaspberryPiProjectWhichTakesAudioSignalsAndTurnsThemIntoLights