r - 如何更改 patchwork 中 tag_levels 的颜色和大小

Question

我们想使用拼凑来更改标签的颜色和大小，但没有发生任何变化

library(ggplot2)
library(patchwork)
p1 <- ggplot(mtcars) + geom_point(aes(mpg, disp))
p2 <- ggplot(mtcars) + geom_boxplot(aes(gear, disp, group = gear))
p3 <- ggplot(mtcars) + geom_bar(aes(gear)) + facet_wrap(~cyl)
# Add title, etc. to a patchwork
p1 + p2 + plot_annotation('This is a title', caption = 'made with patchwork')
# Change styling of patchwork elements
p1 + p2 +
  plot_annotation(
    title = 'This is a title',
    caption = 'made with patchwork',
    theme = theme(plot.title = element_text(size = 16,color="red"))
  )
# Add tags to plots
p1 / (p2 | p3) +
  plot_annotation(tag_levels = 'A',theme = theme(plot.tag = element_text(color = "red")))

Answer 1

随着网站中描述的“&”合成，它似乎工作得很好。

p1 / (p2 | p3) +
  plot_annotation(tag_levels = 'A') &
  theme(plot.tag = element_text(color = "red"))