colour                  Colour Palette
convert                 Simulate Colour-Blindness
plot                    Plot Colour Scheme
scale_colour_land       AVHRR Global Land Cover Classification Colour
                        Scheme for 'ggplot2'
scale_colour_soil       FAO Soil Reference Groups Colour Scheme for
                        'ggplot2'
scale_colour_stratigraphy
                        Geologic Timescale Colour Scheme for 'ggplot2'
scale_tol_discrete      Paul Tol's Discrete Colour Schemes for
                        'ggplot2'
scale_tol_diverging     Paul Tol's Diverging Colour Schemes for
                        'ggplot2'
scale_tol_sequential    Paul Tol's Sequential Colour Schemes for
                        'ggplot2'
