To cite package ‘gridpattern’ in publications use:

  Davis T, FC M (2026). _gridpattern: 'grid' Pattern Grobs_. R package
  version 1.5.1, <https://CRAN.R-project.org/package=gridpattern>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gridpattern: 'grid' Pattern Grobs},
    author = {Trevor L. Davis and Mike FC},
    year = {2026},
    note = {R package version 1.5.1},
    url = {https://CRAN.R-project.org/package=gridpattern},
  }