I would ask someone to share a dark skin with the ban icon, please. I just want that and I see such a mess.
This was said in this thread:
No skin has been released that uses a customised ban icon yet.
If having a customised ban icon is that important to you, you will have to create an .xmlc skin yourself.
Find a dark .xml skin that you like, modify it to add your 'ban' icon, and then compile it into an .xmlc skin.