Early anachronisms that were part of the original construction project, such as a white picket fence and brick walkways, have been replaced by more appropriate styles of pale fencing and graveled walks. Bricks were too expensive at the time of Pennsbury Manor's original construction to be used for walkways, and not even the original house was fully constructed in brick. Since the late 20th century the museum staff has concentrated their attentions indoors, creating an increasingly accurate depiction of domestic life in Penn's time through interpretive programs and such decorative elements as period appropriate wall colors, textiles, and furniture arrangements."