Purple is the color. For a reason - it is very noticeable.
That choice is also a swipe at our so called election integrity in this country.
The first FREE elections (in a very long time) held in IRAQ, right after the permanent removal of Sodamn Insane were secured by that very method. Nothing fancy, but it worked. No double voting, no stuffing the ballot boxes, no midnight runs for the 'drop boxes' - Just show up and vote in person, and color your thumb so that no one can steal the election by having strawman thugs voting repeatedly.
Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good ...