Wordpress If Category statement then show this layered image - wordpress

Question

I have a wordpress blog that has a custom post-type with its own set of categories. There's a similar code in my template that uses a function that searches for different post formats in the blog section and show specific icons for that specific format.
Ex: if(has_post_format('audio')) {return 'ICON IMAGE';}
I would like to do the same thing with the custom post-type's categories. Is there a way where I can search through the custom post-type and by category show different icons?
Ex: if (is_category('Case Studies') {return.......
I tried it that way, but it didn't work out. I think it has something to do with the custom post-type. Do I need to attach the custom post-type to the category somehow?

Answer 1

I needed something similar for four custom post type categories and worked this out, I'm a PHP novice so this may not be the best way but it works for me.
Outside the loop.. I used 'single_term_title to get the name of the custom post type category and assigned it to a variable '$current_term', then used if / else if statements...
<?php $current_term = single_term_title("", false);
//Cat name 1
if($current_term === 'Name 1') {
echo 'something';
}
//Cat name 2
else if($current_term === 'Name 2') {
echo 'something';
}
//Cat name 3
else if($current_term === 'Name 3') {
echo 'something';
}
//Cat name 4
else if($current_term === 'Name 4') {
echo 'somehting';
}
//Do nothing
else {
echo '';
}
?>