ImageBrowserViewAppearance: Customizing IKImageBrowserView

Last Revision:	Version 5.0, 2018-05-03 Upgraded to macOS 10.3 SDK, replaced deprecated APIs. (Full Revision History)
Build Requirements:	OS X 10.13 SDK or later
Runtime Requirements:	OS X 10.10 or later

This sample code shows how to customize the appearance of the IKImageBrowserView by implementing a custom cell and setting a background or foreground layer.