scale_color_tgam        Color scale constructor for The Globe and
                        Mail's colors
scale_fill_tgam         Fill scale constructor for The Globe and Mail's
                        colors
tgam_cols               Function to extract The Globe and Mail's colors
                        as hex codes
tgam_pal                Return function to interpolate a Globe and Mail
                        color palette
theme_tgam              ggplot Globe and Mail theme
