Modify ggplot2 Facet Label Background & Text Colors in R (Example Code)

This tutorial demonstrates how to change the facet label background and text colors of a ggplot2 plot in the R programming language.

Setting up the Example

data(iris)                     # Example data
head(iris)
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
# 1          5.1         3.5          1.4         0.2  setosa
# 2          4.9         3.0          1.4         0.2  setosa
# 3          4.7         3.2          1.3         0.2  setosa
# 4          4.6         3.1          1.5         0.2  setosa
# 5          5.0         3.6          1.4         0.2  setosa
# 6          5.4         3.9          1.7         0.4  setosa
install.packages("ggplot2")    # Install ggplot2 package
library("ggplot2")             # Load ggplot2
my_plot <- ggplot(iris,        # Draw facet_wrap plot
                  aes(x = Sepal.Length,
                      y = Petal.Length)) +
  geom_point() +
  facet_wrap(~ Species)
my_plot

r graph figure 1 modify ggplot2 facet label background text colors r

Example: Change Background & Text Colors of ggplot2 facet_wrap Plot

my_plot +
  theme(strip.background = element_rect(fill = "pink")) +
  theme(strip.text = element_text(colour = "blue"))

r graph figure 2 modify ggplot2 facet label background text colors r

Further Resources & Related Articles

You may find some related R programming tutorials on topics such as plot legends, colors, text elements, and graphics in R below.

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