To cite package ‘colorizer’ in publications use:

  Zumbach D (2024). _colorizer: Colorize Old Images Using the
  'DeOldify' Image Colorization API_. R package version 0.1.0,
  <https://github.com/zumbov2/colorizer>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {colorizer: Colorize Old Images Using the 'DeOldify' Image Colorization API},
    author = {David Zumbach},
    year = {2024},
    note = {R package version 0.1.0},
    url = {https://github.com/zumbov2/colorizer},
  }