Unity is an umbrella principle for visual design, meaning all aspects of "The Language of Design" contribute to the visual unity of an image. Consistency among parts that contribute to the whole is a hallmark of a unified design. Such parts may include color schemes, typography, hierarchy and many other factors. When all of these parts are in sync, the end result is a unified design. However, if one of the parts is inconsistent or improperly applied, unity suffers and the image or Web site often appears disjointed, as though the design was ad-hoc and cobbled together from disparate parts.