After incarnating as a series of pop-up exhibits last year, Oakland’s sprawling outdoor Dia de los Muertos festival is back for its 26th year in the Fruitvale District with a focus on healing a community ravaged by the COVID-19 pandemic. Reflecting the losses suffered by Fruitvale residents because of the virus over the past year and a half, event organizers have chosen the theme “Curando Corazones (Healing Hearts)” as the focal point of the daylong event this Sunday. The intent, organizers said, is to create a healing space in one of the areas in Alameda County hardest hit by the COVID-19 pandemic.