scale_exuber_manual
allows specifying the color, size and linetype in
autoplot.radf_obj
mappings. theme_exuber
is a complete theme which control
all non-data display.
a set of color values to map data values to.
a set of linetype values to map data values to.
a set of size values to map data values to.
base font size, given in pts.
base font family
base size for line elements
base size for rect elements