To cite package ‘displease’ in publications use:

  Cheng M (2024). _displease: Numeric and Color Sequences with
  Non-Linear Interpolation_. R package version 1.0.0,
  <https://CRAN.R-project.org/package=displease>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {displease: Numeric and Color Sequences with Non-Linear Interpolation},
    author = {Mike Cheng},
    year = {2024},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=displease},
  }