To cite package ‘crayons’ in publications use:

  Kenny C (2024). _crayons: Color Palettes from Crayon Boxes_. R
  package version 0.0.3, ,
  <https://github.com/christopherkenny/crayons>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {crayons: Color Palettes from Crayon Boxes},
    author = {Christopher T. Kenny},
    year = {2024},
    note = {R package version 0.0.3, 
},
    url = {https://github.com/christopherkenny/crayons},
  }