My first Sims 4 creation.
I was experimenting with Sims 4 Studio and created 4 recolors of this top. They are just hue adjustment colors, and it is a stand alone item, as I found that was the only way to get them to work in game.
Place the attached file in your ..\Documents\Electronic Arts\The Sims 4\Mods.
Recolors of Clothing and CAS items seem to be very easy to do thanks to the Sims 4 Studio.