To cite package ‘ggtext’ in publications use:

Wilke C, Wiernik B (2022). ggtext: Improved Text Rendering Support for 'ggplot2'. R package version 0.1.2, https://github.com/wilkelab/ggtext.

Corresponding BibTeX entry:

  @Manual{,
    title = {ggtext: Improved Text Rendering Support for 'ggplot2'},
    author = {Claus O. Wilke and Brenton M. Wiernik},
    year = {2022},
    note = {R package version 0.1.2},
    url = {https://github.com/wilkelab/ggtext},
  }