Splenda-sweetened Slurpee Lites will have only 20 calories a pop, compared with 66 calories in the chain’s best-selling Fanta Wild Cherry frozen ice. Available nationwide this week, the low-calorie “treat” is part of the chain’s plan to destroy New York bodegas. Slurpee Lites will target twentysomething females with the tag, “All flavor. No sugar.” It can’t be that easy, right? Right?