Transmogrification
It seems that, unlike some, this world supports the transmogrification of one item into another.
Transmogrification is a way to change purely the appearance of items,keeping all their attributes and other behaviour intact.

Transmogrifies the item in the given slot to appear as the given item. Returns true if changes were made.

Applies a void transmogrification to the item in the given slot. Returns true if changes were made.

Removes any transmogrification from the item in the given slot. Returns true if changes were made.

Returns the transmogrification on the item in the given slot, or void if none is applied.