Applying a category wide theme in moodle 2.4

Neat.  We recently moved a bunch of related courses into a new category on one of our moodle instances.  I noticed a common look among the courses and thought it would be neat if I could apply a category wide theme.  I have plenty of experience with site wide and course specific themes, but never looked for a category wide theme.  I found this forum that answered my question.

I activated category themes from the Site Admin | Appearance | Themes | Theme setting menu.

Once the setting was active.  I turned on editing, clicked on the category in the Setting menu

I noticed a new option, Force theme:

I editing the magazine theme, adding a graphic header.  Now I have a great looking, consistent feeling look and feel throughout all the courses in the LPN category.  Magic!