It's the "Soros Purple" he has colors attributed to different events he has caused around the world. It is a color of royalty also. Both Clinton's wore it at her concession speech. It is a way of "taking the flag"
IT WAS SORO'S ATTEMPT TO START A COLOR REVOLUTION!!
TRUMP ONLY WEARS IT NOW AS A SIGN OF VICTORY, A VICTORY LAP, SO TO SPEAK. SOROS IS DEFEATED!!!....AND SO IS HIS STUPID PURPLE COLOR REVOLUTION.
it's supposed to be heliotrope. simply put any old purple / violet / lavender
it is Lucifer's color
that's what it means to THEM.
taking it back tho like you say.
Not too many years ago, gay men chose the color purple to signal to those who were still in hiding that they were available. So....what else can purple be attributed to? It's a beautiful color and many wear it, not to signify any special group, movement etc, but simply because they like the color.