Since we can't make a system tag look different, when possible we should probably expand system tags so they don't look like common game terms.
Masks: A New Generation is the complete text used in the trade dress of all books I could find for the RPG called "Masks" for short in its own text. Renaming the tag from masks to masks-a-new-generation will create a tag that more definitively looks like a book title without creating ambiguity about any existing products.