The only font currently available is 'spleen' - a monospace bitmap font from: https://github.com/fcambus/spleen
nr_text(nr, str, x, y, colour = "black", fontsize = 8)nativeRaster image
character string [scalar]
coordinates of lower-left corner of text. [scalar]
Color as a character string. Either a standard R color
or a hex colour of the form #rrggbbaa or #rrggbb
height of font in pizels. Only valid values are 8, 12 and 16. Default: 8.
The 'spleen' font is licensed under BSD and the license is included in this package as "LICENSE-spleen.txt"