To cite package ‘gex’ in publications use:

  Dray M (2025). _gex: A Dependency-Light Hex-Logo Builder_. R package
  version 0.2.2, <https://github.com/matt-dray/gex>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gex: A Dependency-Light Hex-Logo Builder},
    author = {Matt Dray},
    year = {2025},
    note = {R package version 0.2.2},
    url = {https://github.com/matt-dray/gex},
  }