The city does not allow signs to be directly painted on a building.
As far as I'm concerned, this is the problem. Overly-controlling instincts, too many damn rules that narrowly define what can be tolerated.
Again, it's a matter of choosing limits. I don't support graffiti artists painting-up bus stops. Or junk cars rotting on front lawns. But homes and businesses sure should be given wide latitude in adding artwork to their buildings.