To cite package ‘ggthemes’ in publications use:

Arnold J (2026). ggthemes: Extra Themes, Scales and Geoms for 'ggplot2'. R package version 7.0.0.9000, https://github.com/jrnold/ggthemes.

Corresponding BibTeX entry:

  @Manual{,
    title = {ggthemes: Extra Themes, Scales and Geoms for 'ggplot2'},
    author = {Jeffrey B. Arnold},
    year = {2026},
    note = {R package version 7.0.0.9000},
    url = {https://github.com/jrnold/ggthemes},
  }