This package provides a theme and colour palette for
ggplot figures in R.
With this, you can make publication-ready figures with colours that match
the Utrecht University corporate identity.
Install within R using devtools:
install.packages("devtools")
require(devtools)
devtools::install_github("https://github.com/UtrechtUniversity/gguu.git")For installing the required fonts, see below.
Below is a simple example using data from the ggplot2 package:
library(ggplot2)
library(gguu)
mpg |>
ggplot(aes(x = displ, y = hwy, colour = drv)) +
geom_point(size = 2) +
labs(
title = "Engine size vs highway mileage",
subtitle = "Each point is one car model",
x = "Engine displacement (litres)",
y = "Highway miles per gallon",
colour = "Drive") +
uu_presentation() + # Use the theme for presentations (line and font sizes for screens)
scale_colour_uu_d() # Use the discrete colour scale
And as a more fun example, here is one with penguins! 🐧🐧
library(palmerpenguins)
penguins |> ggplot(na.omit(.) %>% filter(island == "Biscoe"),
mapping = aes(
x = bill_length_mm,
y = bill_depth_mm,
color = species, shape = species
)
) +
geom_point(size = 2) +
theme(legend.position = "right") +
labs(
x = "Bill length (mm)",
y = "Bill depth (mm)",
title = "Scatterplot of penguin bill sizes",
subtitle = "on Torgersen island",
caption = "Penguin species are labelled by colour and shape"
) +
uu_publication() +
scale_colour_uu_d()
And here is an example using more colours, showcasing 7/8 UU palette colours:
library(dplyr)
library(forcats)
mpg %>%
mutate(class = fct_reorder(class, hwy, .fun='median')) %>%
ggplot(aes(
x=reorder(class, hwy),
y=hwy,
fill=class)) +
geom_boxplot() +
labs(x = NULL, y = "Highway miles per gallon") +
uu_presentation() +
scale_fill_uu_d() +
theme(legend.position="none") # Remove the legend, because it isn't necessary
(to do...)
Read https://www.uu.nl/en/organisation/corporate-identity/brand-policy/colour for details.
${\color{#FFCD00}Yellow = FFCD00}$ ${\color{#000000}Black = 000000}$ ${\color{#FFFFFF}White = FFFFFF}$ ${\color{#C00A35}Red = C00A35}$
Red is used sparingly as additional accent.
${\color{#FFE6AB}Cream = FFE6AB}$ ${\color{#F3965E}Orange = F3965E}$ ${\color{#AA1555}Burgundy = AA1555}$ ${\color{#6E3B23}Brown = 6E3B23}$ ${\color{#24A793}Green = 24A793}$ ${\color{#5287C6}Blue = 5287C6}$ ${\color{#001240}Dark Blue = 001240}$ ${\color{#5B2182}Purple = 5B2182}$
These colours may also be used in lighter shades if that fits better with the data visualisation.
Read https://www.uu.nl/en/organisation/corporate-identity/brand-policy/fonts for details.
The fonts are freely available from Google Fonts.
Titles: Merriweather Other text: Open Sans Titles, alternative: Zilla Slab
- Version 0.1: first working release with simple theme and one colour palette
- Further versions (order of updates to be determined)
- example figures in README
- theme adapted for screen, poster and article
- option for lighter colours
- proper documentation of all functions
- extended colour palettes?
- make installable through CRAN?
This project is licensed under the terms of the BSD 3-Clause License.
Thanks to:
- Utrecht University Brand Team for providing the colours and fonts
- Jakob Wirbel, for providing a nice example with ggembl
- Yan Holtz, for inspiring me through to start making an R package in the course Productive R workflow
- David Barnett for pointing me in the direction of devtools to facilitate creating a package with documentation
- Allison Horst for providing the penguin dataset