UMLR — UML wording in Superstructure 2.4.1

I have a comment concerning wording in the UML 2.4.1 Superstructure document
you are using both "classifier rectangle" and "class rectangle" for describing
presentation options. Is this really appropriate?
I'd like to suggest to use "classifier rectangle" consistently since
there is no
special representation shape of a class, and class is a specialization
of classifier.
Additionally, at page 152, you give "Classifier rectangle" with
capital letter.
I think that, in terms of consistency, it should be "classifier
rectangle" there as well.