Here are some design notes when it comes to modern pergola designs. The most common pergola design is to have decorative and somewhat rounded ends on the beam. The easiest way of creating a more modern pergola is to do away with the decorative ends.
Love the lighting under the seat. Using solar rope lights under neath would give this same effect. The design of this wall is great along with the bench lighting. This design would be easily achievable on a roof top or small backyard setting