To cite package ‘marble’ in publications use:

Uryu S (2022). marble: Coloring for Categorical Variables. R package version 0.0.0.9000, https://github.com/uribo/sazareishi.

Corresponding BibTeX entry:

  @Manual{,
    title = {marble: Coloring for Categorical Variables},
    author = {Shinya Uryu},
    year = {2022},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/uribo/sazareishi},
  }