geom_label() does not recognise label.colour argument in ggplot2 v3.5.1

[stefaniemeliss]

I found a problem with geom_label() in ggplot2 v3.5.1.

I expected that setting label.colour = "black" would change the text colour inside the label, as described in the documentation. Instead, I get the warning: Ignoring unknown parameters: label.colour and the text colour is not changed.

Here is the code to reproduce the bug:

library(ggplot2)

df <- data.frame(
  data = c("A", "B"),
  pos_y = c(1, 2),
  rank = c(1, 2)
)

ggplot(df, aes(x = data, y = pos_y)) +
  geom_label(
    aes(label = rank, colour = data),
    label.colour = "black",
    size = 4,
    vjust = 1
  ) +
  scale_colour_manual(values = c("red", "blue"))

Expected:

The border of the label should follow the colour mapping (colour = data). The text inside the label should be black (label.colour = "black").

Actual:

The border and text both follow the colour mapping, and the warning about label.colour appears.

[teunbrand]

Thank you for the report! I'm somewhat confused here, as there exists a text.colour and border.colour parameter in geom_label(), but not a label.colour. These were also introduced in ggplot2 4.0.0, so I don't think they were available in ggplot2 3.5.1. Can you point to the documentation that says there is a label.colour parameter?