To cite package ‘ggtintshade’ in publications use:

  Kumler W (2026). _ggtintshade: Tinting and Shading Aesthetics for
  'ggplot2'_. R package version 0.1.2,
  <https://CRAN.R-project.org/package=ggtintshade>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ggtintshade: Tinting and Shading Aesthetics for 'ggplot2'},
    author = {William Kumler},
    year = {2026},
    note = {R package version 0.1.2},
    url = {https://CRAN.R-project.org/package=ggtintshade},
  }