Aaron Galligan-Stierle beamed through the Zoom screen when asked if he was familiar with the score to Sunday in the Park with George. He will play the show’s two artists named George – one, a fictional version of renowned pointillist George Seurat, circa 1884; the other, that George’s grandson, in 1984 – when Front Porch Theatricals’ production opens at the New Hazlett Theater, on Friday, August 15. Saige Smith play’s George’s muse, Dot, and her daughter, Marie, in the Stephen Sondheim musical about love and legacy, passion and sacrifice, art and commerce.