The `geom_text` is not controlled by `theme` properties when importing fonts.

[Breeze-Hu]

Hi!
I've encountered a strange phenomenon. It seems that after users manually add fonts, the theme(text=element_text()) properties no longer control the font in geom_text.

library(ggplot2)
library(showtext)
#> Loading required package: sysfonts
#> Loading required package: showtextdb

font_add("Times New Roman", "/Library/Fonts/Times New Roman.ttf")
showtext_auto()

data <- data.frame(
  x = 1:5,
  y = c(2, 4, 6, 8, 10),
  label = c("one", "two", "three", "four", "five")
)

ggplot(data, aes(x = x, y = y, label = label)) +
  geom_point(size = 3) +
  geom_text(size = 8, vjust = -1) +  # No font specified for use
  labs(title = 'Times New Roman') +
  theme(text = element_text(family = "Times New Roman", angle = 45))

After directly specifying the font family with geom_text(family = “Times New Roman”), font family works as expected. But angle still not effective.

ggplot(data, aes(x = x, y = y, label = label)) +
  geom_point(size = 3) +
  geom_text(size = 8, vjust = -1, family = "Times New Roman") +  
  labs(title = 'Times New Roman') +
  theme(text = element_text(family = "Times New Roman", angle = 45))

^{Created on 2025-10-13 with reprex v2.1.1}

AND, I haven't tested whether this issue occurs with the built-in fonts.

[teunbrand]

the theme(text=element_text()) properties no longer control the font in geom_text.

I don't think this ever controlled geom_text(), and if it did, it shouldn't have. We can use theme(geom = element_geom(family)) to control the default font of geom_text() though.

[Breeze-Hu]

Thank you for your reply! I just realized that too—it's appropriate to isolate it for separate control.

[Breeze-Hu]

I think I made a mistake here. At first, I only remembered the element_text. I completely forgot about the newly introduced element_geom.😥