[AE-79] Switch `useGreyScale` value in Processing sketch without changing code#673

facchinm merged 2 commits intoarduino:mainarduino/ArduinoCore-mbed:mainfrom

aliphys:aliphys/selectGreyScaleStatusaliphys/ArduinoCore-mbed:aliphys/selectGreyScaleStatusCopy head branch name to clipboard