Package-level declarations

A type of protection which draws the plain color.

A type of protection which draws the gradient color.

An abstract class which describes a layer to be placed on the content of a window and underneath the system bar (which has a transparent background) to ensure the readability of the foreground elements (e.g., text, icons, ..., etc) of the system bar.

A layout drawing views under system bars, called Protections, to ensure enough contrast between the system bars (such as status bar and navigation bar) and the app content.