2.1.1291 Part 1 Section 20.1.8.20, cont (Effect Container)

a.   The standard states that the name attribute specifies an optional name for this list of effects.

In Office, the name attribute specifies an optional name for the container. This name can be used by an effect ("[ISO/IEC-29500-1] §20.1.8.24; effect") within the same top level container. The name must be unique throughout the top level effect container.