Kind of both but more technique.I believe House of Kolor's is lacquer based.What you do is lay down one color and let it flash.Then you put a different color on top and mess it up.While the color is still wet you lay plastic over it,drag a brush over,anything to remove some of the color and pattern it so the first color shows through.I've heard of some doing it with conventional basecoat with varied results.When you're done you clear it a few times to level it out.I believe HOK needs a coat of base clear before you can topcoat clear it,but I'm not sure.I don't care for it personally,but playing with candies over it looks cool.