Changes in version 0.2-1                        

    o   Allow "gList" as grob argument.
	
	Suggested by Casper Hart.

                 Changes in version 0.2-0 (2022-01-11)                  

    o   Add support for defining key glyph for legend.
	
	GeomGridPanel and GeomGridGroup are now constructed on-the-fly;
	required_aes are generated from mapping.
	
	User can specify show.legend and key_glyph.

                        Changes in version 0.1-2                        

    o   Prevent warnings about “unknown aesthetics”.