Skittles are small round fruit chews that come in hard sugar shells with the letter "s" printed on them, representing the candy's name. This "s" insignia was printed in a very dark shade of purple (almost appearing black) from 1974 until 1988. Starting in 1989, the "s" insignia was changed to white. Modern Skittles with the white "s" insignia are similar in outward appearance to plain chocolate M&M's, which are also produced by Masterfoods, a division of Mars, Incorporated. The inside is a white granulate and consists mainly of sugar, and a small amount of hydrogenated vegetable oil, fruit juice, citric acid and natural and artificial flavors.