Are there nutritional differences between different types of popcorn?

So I have discovered that there are actually several different types of popcorn. Not like different brands and varieties of microwave popcorn. Like legitimately different types. Yellow, white, red, blue, ladyfinger, mushroom are the ones I've come across. Are these all the same nutritionally? Typically I am inclined to believe that popcorn is popcorn. However, when looking around, it seems that yellow has 105 kcal per 28g, while all of the others are 110 kcal per 39g. Does anyone know if this is just a mistake? Why would yellow popcorn be more calorie dense? It doesn't make a whole lot of sense to me.