With the sense ‘that is shown or displayed’, ‘characterized by show or display’, ‘that is suitable for display, esp. as a specimen, or as being…

of or pertaining to an exhibition.

That is a showpiece; characteristic of a showpiece; that is a fine or prime example of its type.

An image of a photograph, document, email, etc., that provides an opportunity to assess, adjust, or correct the content before it is finalized; a…