Besides piping gel I don’t think anything will give you that clear look. You could use buttercream with a more opaque look or paint fondant. I used piping gel but the stuff I had tasted awful! It was wilton in the tub not the tube. So I would say try the tube it may taste better.
Tara, Nova Scotia, https://www.facebook.com/pages/Valleys-kool-cakes/131353476890032
