color mixing... this site is for fondant, but I'm think the color chart is pretty universal.
Screwdriver cupcake toppers using Satin Ice Fondant
Finding Dory & Finding Nemo cake! Essential ingredients include: Satin Ice Gum Paste, Roberts Confectionery Yellow and Orange Powder Dye, Satin Ice Fondant - blue, purple, black, bright green, red, orange, green. Roberts Confectionery White Non Pareils, Roberts Confectionery Salted Caramel Topping and Roberts Confectionery 3D Shell Chocolate Mould. Full recipe on our website: http://www.robertsconfectionery.com.au/pages/recipe-sheets