Gold and Copper Metallic Accents are all over 2017 wedding cake designs. Edible gold dusts and paints come in all shades that allow wedding cake designers to paint directly on the cake. Gold and ruffle accents are sometimes best in small increments or accents layers. For example: one layer or tier of cake can frosted plain and the next tier can be have a pop of gold. this way the eye can rest and the cake looks classy without being overdone.