A backdrop appears behind all other surfaces in an app, displaying contextual and actionable content.A backdrop is composed of two surfaces: a back layer and a front layer. The back layer displays actions and context, and these control and inform the front layer’s content.A backdrop consists of a back layer, a front layer, and an optional subheader. Either the back layer or the front layer can be active at a time.The front layer always appears in front of the back layer. It is displayed at full width and holds primary content.
- May 24, 2018