Commentary and photograph by WILLIAM MORGAN

Christina Olson, the cripple depicted in Andrew's Wyeth's 1948 painting "Christina's World, '' has moved beyond the iconic, even beyond kitsch, to the commonplace – as ubiquitous as the "Mona Lisa ''or "Whistler's Mother''.

Still, her appearance as a bit of graffiti on a utility meter box is a bit jarring. A purple house with orange highlights in Luongo Memorial Square , in the Federal Hill section of Providence,  suggests that the neighborhood is having a renaissance. Or at least educated people who will get the reference are moving in.