An array containing the default colors for the chart's series. When all colors are used, new colors are pulled from the start again.
Examples
library(viridisLite)
cols <- viridis(3)
cols <- substr(cols, 0, 7)
highchart() |>
hc_add_series(data = sample(1:12)) |>
hc_add_series(data = sample(1:12) + 10) |>
hc_add_series(data = sample(1:12) + 20) |>
hc_colors(cols)