The example is faulty

[alireza5969]

The following example which is provided on the Introduction to gghighlight page is not correct:

ggplot(d) +
    geom_line(aes(idx, value, colour = type)) +
    gghighlight(max(value) > 20, label_params = list(linewidth = 10))

The linewidth parameter is for lines not for labels. Therefore, when you run the code, the following warning will be shown by R: Warning message: In geom(mapping, rightmost_points, linewidth = 10) : Ignoring unknown parameters: `linewidth`

[yutannihilation]

Thanks for letting me know! It was my mistake when I replaced some size to linewidth in the doc.