A Facing Lift ... The sidewalk slab sporting the JPMorganChase logo in front of the bank's Park Avenue headquarters got a makeover last week when a blue, tough-faced vinyl covering went over the metal surface--which went over the original stone surface. Press officials at J.P. Morgan did not comment by press time last week, but the move to blue seems to address the weather beating the previous sign took. That sign was growing discolored at its panel seams and someone (a vandal? a rival banker?!) or something had knocked out some of the detailing in one of the letters. The new sign would seem to be resistant to those hazards. The right resistance is everything.