R/annotation_ticks.r
R/geom_cartogram.r
ggplot2-ggproto.Rd
If you are creating a new geom, stat, position, or scale in another package, you'll need to extend from ggplot2::Geom, ggplot2::Stat, ggplot2::Position, or ggplot2::Scale.
ggplot2-ggproto