geom_treespace          A layer of phylomorphospace
geom_tsheatmap          Add a layer of heat map with trait data
ggtreespace             Plot phylomorphospace
make_ts_data            Make plot data for ggtreespace. This function
                        processes a phylogenetic tree and associated
                        trait data to create a data frame suitable for
                        plotting with 'ggtreespace'.
phylospm                Plot phylogenetic scatterplot matrix.
theme_treespace         Phylomorphospace theme No.1, with arrow-end
                        axis and grey panel grid.
theme_treespace2        Phylomorphospace theme No.2, with blank
                        background and panel border.
