I've wiped my WiFi icons and don't know which file to restore
You are correct, I've uploaded a copy of /System/Library/PrivateFrameworks/CoreWLAN.framework here:

http://depositfiles.com/files/4cg5rhv5t

You can test that file (or use your backup) if you want. As always, you might rather reinstall the system than trust a file on the internet - even if I uploaded the correct file and had no ill intentions, the file could change before you download it, so it's always safer to get a file from your backup set or the verified install media from Apple.