Snoopy as we know dresses as a WWI flying ace. What color was his flight cap?
(Light) Green [In other programs and the color strips, it is brown. See the TV scenes here: https://outermosthouse.wordpress.com/2015/11/11/charles-schulzs-war/] (edited at 7:29 am, October 20, 2017 (PDT))
Original Answer: (Light) Green