It could be that a library points to an icon which you can't change so easy. So some hardcoded stuff is tough.

Anyway I think you know best what you are looking for and you need to investigate by yourself.

For example I found the above listed files with a search string "general_prescence".

I used a mighty console tool which I will attach to this post.
Remove zip extension and unpack.
Copy sfk to /opt/sfk/ and make it executable.

command I used(it will search in all files also binary located in /usr):