target background-color on select clipart categories

We need a dark background-color for a few categories in clipart. Is there a way to target background-color on select clipart categories without resorting to setting up a new store?

.local_table_clipspopup th {
background-color: #FFFFFF;
width: 125px !important;
}

There was no way to do it, but now I've added something that might help.
The table originally had only the local_table_clipspopup class.
Now I added also a 2nd one which includes the category ID, and looks somethng like this: local_table_clipspopup_category_xxxx
where xxxx is the category ID. chcking with an inspector while loading a spacific category will give you the number you need.

So, if you want a different BG for the category ID 3258, you can do someting like this:

.local_table_clipspopup th {
   background-color: #FFFFFF;
   width: 125px !important;
}
local_table_clipspopup_category_3258 th { background-color: #FF0000 !important; }

Thank Alex. Works perfectly. Although, you left off the leading "." in the example.

Done on purpose, was checking if you were paying attention

Could you also add the same to the popup thumbnail image?

Done same way. Now class like local_table_clipspopup_thumbs_large_category_xxx exists

Perfect. Padding can also be added into these.

Thank you Alex.