Meaningless but sorta neat
Pointless historical connection.... The yellow-green color of the jackets that have become the symbol of the Gilets Jaunes was originally developed by Pickett for its slide rules. This particular shade
hits a sweet spot in retinal salience. It was adopted (rather briefly) as a color for fire engines. More recently fire engines have returned to the traditional red.
In other words, the French protesters are picketing in Pickett jackets.