To cite package ‘zueritheme’ in publications use:

  Feller A, Hänzi S (2026). _zueritheme: ggplot theme to conform to the
  corporate identity/design of the city of Zurich_. R package version
  1.0.1, <https://github.com/statistikstadtzuerich/zueritheme>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {zueritheme: ggplot theme to conform to the corporate identity/design of the
city of Zurich},
    author = {Alessandro Feller and Sara Hänzi},
    year = {2026},
    note = {R package version 1.0.1},
    url = {https://github.com/statistikstadtzuerich/zueritheme},
  }