6. Matlyn was so excited about her new Good luck ladybug umbrella that she completely forgot it was bad luck to open the umbrella inside the house. She sprung it open to show her friend Izzy that not only did her umbrella have a lucky ladybug on each of the 8 equally sized panels, it also had color-symmetry across the vertical, dark black line when looking at the top. If we know the color of two panels, a yellow beside a blue, and each panel of the umbrella is either yellow or blue, how many way can the remaining panels be colored.