Apparel is a special type of item that can be placed on horses to change their appearance, as demonstrated by the Prism Unicorn to the right. A wide variety of apparel items can be purchased for silver, and currently include backgrounds, mane extensions, markings, and accessories. The opacity of apparel can be adjusted, making many different colors possible for mane extensions and markings.
With the exception of backgrounds, all apparel items are made for a specific species and pose of horse, and cannot be placed on any horses other than those they were designed for. Certain colors, typically those with extensive lineart alterations, cannot even wear their own species' apparel items. Currently, not all species and pose combinations have apparel made for them.