pastrydecorator

2. A tool or small machine used to add fancy designs to baked goods.

She used a pastrydecorator to swirl cream on the cupcakes.

3. A software feature that adds decorative elements to digital cake designs.

The app's pastrydecorator let him drag icing flowers onto the screen.

4. A person who styles food displays in a bakery window.

The pastrydecorator arranged the tarts to look like a rainbow.