Xcode 16 insists on showing deprecations of this type:
Some.xib SF Symbol 'doc.on.doc' is deprecated, use 'document.on.document' instead.
The problem is that the XIBs in question are set with a Deployment Target of macOS 12, where "document.on.document" actually isn't available and produces a missing image.
So the warnings are wrong, as they ignore the deployment target set on the XIB. I filed a bug against this long ago and it was ignored. Having given up... does anyone know how to disable this particular warning?