cani_color_league_features
                        Check to see what features of a surface can be
                        colored
cani_plot_league        Check to see if a league can be plotted, and
                        alert as to which function(s) that league will
                        work for
cani_plot_sport         Check to see if a sport can be plotted, and
                        alert as to which league(s) are plottable for
                        the sport
convert_units           Convert all units, regardless of starting and
                        ending units
geom_baseball           Generate a 'ggplot2' instance containing a
                        baseball field for a specified league
geom_basketball         Generate a 'ggplot2' instance containing a
                        basketball court for a specified league
geom_curling            Generate a 'ggplot2' instance containing a
                        curling sheet for a specified league
geom_football           Generate a 'ggplot2' instance containing a
                        football field for a specified league
geom_hockey             Generate a 'ggplot2' instance containing an ice
                        rink for a specified league
geom_soccer             Generate a 'ggplot2' instance containing a
                        soccer pitch for a specified league
geom_tennis             Generate a 'ggplot2' instance containing a
                        tennis court for a specified league
geom_volleyball         Generate a 'ggplot2' instance containing a
                        volleyball court for a specified league
