Registers a font family for use in ggplot2 plots and updates
the default font for text and label geoms. Three font families are
bundled with the package for offline use: "Open Sans",
"Lato", and "Source Sans 3". Any Google Font can be
loaded when an internet connection is available.
Value
Invisible NULL. Called for its side effects of
registering fonts and enabling automatic rendering.
Details
Font rendering uses showtext (via sysfonts).
Bundled fonts are loaded from TTF files in inst/fonts/;
other fonts are fetched via font_add_google.
