A California Army veteran decided to mark the Fourth of July with a patriotic display, rendering a huge American flag in spray paint on her front lawn in Benicia. Since returning to her hometown 18 months ago, Erin McKay-Schnell knew her yard was the perfect size for the project. When last year’s July 4th celebrations were canceled due to the pandemic, she put plans for a lawn flag on ice; but by Father’s Day 2021, she and her husband, Jonathan, knew: the time had come. “We haven’t been able to have any festivities for the 4th this year or last year, and so I decided I would paint my front yard as an American flag with the help of my husband and some friends,” Erin told ABC. Using chalk spray paint, the couple teamed up with brother and sister duo Brandon and Jennifer Reiff to render the iconic stars and …