Oh, really? Thanks, Gedemon, I'll check that out.
EDIT: I like the compatibility, but I really don't like the leaders' names in parentheses in the same large font after the city name, and I don't want to leave them out either.
For now, I've instead incorporated "CS View City" by whoward69 which includes the protected status that CiVUP provides to that screen, plus a "View City" button, and I ensured that regardless of the order of activation, it should work when CiVUP is activated.
I've also posted another version (see the first post) for those who absolutely need a fully compatible version and don't mind the leader names in the alternate location.
EDIT: Note, do NOT put both the regular and compatible versions in your Mods folder at the same time since they both use the same mod ID.
EDIT #2: If you DO use the compatible version, let me know whether you'd prefer to just leave out the leader names (or for the Flags version, the country name).