To cite package ‘pillar’ in publications use:

  Müller K, Wickham H (2026). _pillar: Coloured Formatting for
  Columns_. R package version 1.11.1.9018,
  <https://github.com/r-lib/pillar>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pillar: Coloured Formatting for Columns},
    author = {Kirill Müller and Hadley Wickham},
    year = {2026},
    note = {R package version 1.11.1.9018},
    url = {https://github.com/r-lib/pillar},
  }