The process of breaking the cookie causes calorie leakage. Late-night snacks have no calories. The refrigerator light is not strong enough for the calories to see their way into the calorie counter. If you are in the process of preparing something, food licked off knives and spoons has no calories, e.g. peanut butter on a knife, ice cream on a spoon. Foods of the same color have the same number of calories.
Examples are spinach and pistachio ice cream, mushrooms and white chocolate.
Chocolate is a universal color and may be substituted for any other.