Above, on Saturday, at Art Around the Park at the HOWL Festival at Tompkins Square Park, Rolando Vega, right, discussed art with a fellow East Village artist, Scarlet Potts, 6. Below, also on Saturday, a group vending cupcakes and sweets passed an Art Around the Park painting in memory of the late Valerie Blitz. A painter, actress and activist, Blitz, who had AIDS, died July 28 at age 52. According to the Indypendent, Blitz was heavily involved in the Lower East Side art space ABC No Rio in its early days, exhibiting her paintings and performing there. She appeared in more than 40 films, including Ari Roussimoff’s “Shadows of the City” and Michael Brynntrup’s “Die Botschaft” (“The Message”).