Parameters to add and customize the locale as used by roboplotr.
Examples
# You might want to display dates or numbers with some another default format
# for decimal marks or thousand marks.
set_roboplot_options(
  locale = set_locale("en-GB"),
  caption_template = "Source: {text}."
  )
d <- energiantuonti |>
  dplyr::filter(Alue == "USA", Suunta == "Tuonti") |>
  dplyr::mutate(value = value * 1000000, Alue = "Canada")
d |>
  roboplot(color = Alue,
           title = "Energy import",
           subtitle = "Mil. \u20AC",
           caption = "Statistics Finland")
# This works on dates, too, if you need to show an exact date. In this
# example you wouldn't, and it only matters on the hoverlabel here, but let's
# force roboplotr() to display dates at by-day accuracy for the sake of example
# by using data frequency of "Daily".
attr(d, "frequency") <- "Daily"
d |> roboplot(color = Alue,
              title = "Energy import",
              subtitle = "Mil. \u20AC",
              caption = "Statistics Finland")
# Revert to defaults:
set_roboplot_options(reset = TRUE)