Preheat oven to 350 degrees F. Spray an 8x8 baking dish with nonstick spray.
In a large bowl stir cake mix and pudding until just combined. Mix in eggs, oil, orange extract, and food coloring.
Fold in chocolate chips.
Bake for 15-20 minutes or until the edges are golden brown. Cool completely.
Mix butter, cream cheese, and vanilla together. Gradually add powdered sugar. Spread frosting over the bars with an offset spatula.