Today's OneWord: Residue

The chalk left a harsh green residue on Shelly's fingers as she scraped at the gray pavement, shoulders stiff and sore as she hunched over her work. To her right, street artists had all gathered to make their creations, their borders clearly drawn in stark, hostile white. Lifting her head for a split second, Shelly spotted Jerry drawing the remains of a horseman of death with red and gold.