aes_contrast            A mapped aesthetic for text colour on fill
axis_bracket            Annotate an axis bracket
axis_line               Annotate an axis line
axis_text               Annotate axis text
axis_ticks              Annotate axis ticks
guide_sec_axis_text     Guide optimised for secondary axis text
                        annotations
panel_shade             Annotate a shaded panel region
reference_line          Annotate a reference line
sec_axis_text           Secondary axis optimised for text annotations
theme_sec_axis_text     Theme adjustments optimised for secondary axis
                        text annotations
