Priya Seth, a fashion designer, has launched a new range of dresses by the name, Sukriti'. To give her dresses a distinct image and to distinguish them from the competitor's products, she has designed a unique symbol with a distinct colour scheme. This symbol is available on all the labels, packaging and advertising campaigns of this new range of dresses. She has also registered this symbol to give it a legal protection against its use by other firms.
From the following, name the term used to denote the symbol designed by Priya Seth in the above case :