MediaLibary Component Support

Hi all, I'm trying to change the CSS style and attach different images to parent category, but when I change the style to parent category also child category changed.
There is a way to make a different style for both?

This is the row in page medialibrary.html.it that I want to change:



It is possible to split this element in 2 elements (1 parent category and 2 child category) for apply different CSS styles?

Thanks
Ric