Protected Categories in Membership 2 Pro

Is there a way to check if a category is protected when using the Membership 2 Pro plugin?

My client has some very specific requests and I am trying to figure out how to accomplish them.

We are using wp_list_categories to create a list of categories for a navigation in our FAQ section. Some of the categories are protected by Membership 2 Pro. My client wants the categories that are protected to be the color Red a user is logged into the appropriate membership level that allows them to view the protected category.

Could anyone help me figure out how I can do this?