How to create your own custom ggplot2 theme (CC152)

October 7, 2021 • PD Schloss • 1 min read • •

ggplot2 comes with numerous options for setting the overall appearance of a figure using its theme functions. Did you know you can create your own custom theme? In this Code Club, Pat will share how to create your own ggplot2 them by creating a theme_darkmode function and applying it to a slope plot that he has been creating in recent episodes. The data depict the percentage of people in 15 countries who would be willing to receive the COVID-19 vaccine as of August and October of 2020.

Pat uses the theme function from ggplot2 and a variety of functions from the dplyr, showtext, and ggtext packages in RStudio.

Code

You can browse the state of the repository at the

• beginning of the episode
• end of the episode

Data

The august_october_2020.csv data is available in the GitHub repository.

X.1,Total Agree - August 2020,Total Agree - October 2020
Total,77,73
India,87,87
China,97,85
South Korea,84,83
Brazil,88,81
Australia,88,79
United Kingdom,85,79
Mexico,75,78
Canada,76,76
Germany,67,69
Japan,75,69
South Africa,64,68
Italy,67,65
Spain,72,64
United States,67,64
France,59,54