You should import_plex_sans first and also install the fonts on your system before trying to use this theme.

theme_ipsum_ps(base_family = "IBMPlexSans", base_size = 11.5,
  plot_title_family = "IBMPlexSans-Bold", plot_title_size = 18,
  plot_title_face = "plain", plot_title_margin = 10,
  subtitle_family = if (.Platform$OS.type == "windows") "IBMPlexSans"
  else "IBMPlexSans-Light", subtitle_size = 13,
  subtitle_face = "plain", subtitle_margin = 15,
  strip_text_family = "IBMPlexSans-Medium", strip_text_size = 12,
  strip_text_face = "plain", caption_family = if (.Platform$OS.type ==
  "windows") "IBMPlexSans" else "IBMPlexSans-Thin", caption_size = 9,
  caption_face = "plain", caption_margin = 10, axis_text_size = 9,
  axis_title_family = base_family, axis_title_size = 9,
  axis_title_face = "plain", axis_title_just = "rt",
  plot_margin = margin(30, 30, 30, 30), grid_col = "#cccccc",
  grid = TRUE, axis_col = "#cccccc", axis = FALSE, ticks = FALSE)

Arguments

base_family, base_size

base font family and size

plot_title_family, plot_title_face, plot_title_size, plot_title_margin

plot tilte family, face, size and margin

subtitle_family, subtitle_face, subtitle_size

plot subtitle family, face and size

subtitle_margin

plot subtitle margin bottom (single numeric value)

strip_text_family, strip_text_face, strip_text_size

facet label font family, face and size

caption_family, caption_face, caption_size, caption_margin

plot caption family, face, size and margin

axis_text_size

font size of axis text

axis_title_family, axis_title_face, axis_title_size

axis title font family, face and size

axis_title_just

axis title font justificationk one of [blmcrt]

plot_margin

plot margin (specify with ggplot2::margin)

grid_col

grid color

grid

panel grid (TRUE, FALSE, or a combination of X, x, Y, y)

axis_col

axis color

axis

add x or y axes? TRUE, FALSE, "xy"

ticks

ticks if TRUE add ticks

Details

There is an option hrbrthemes.loadfonts which -- if set to TRUE -- will call extrafont::loadfonts() to register non-core fonts with R PDF & PostScript devices. If you are running under Windows, the package calls the same function to register non-core fonts with the Windows graphics device.

Why IBM Plex Sans?

It's free, has tolerable kerning pairs and multiple weights. It's also different "not Helvetica".

Examples

# NOT RUN {
library(ggplot2)
library(dplyr)

# seminal scatterplot
ggplot(mtcars, aes(mpg, wt)) +
  geom_point() +
  labs(x="Fuel effiiency (mpg)", y="Weight (tons)",
       title="Seminal ggplot2 scatterplot example",
       subtitle="A plot that is only useful for demonstration purposes",
       caption="Brought to you by the letter 'g'") +
  theme_ipsum_rc()

# seminal bar chart

# note: make this font_rc on Windows
update_geom_font_defaults(family=font_rc_light)

count(mpg, class) %>%
  ggplot(aes(class, n)) +
  geom_col() +
  geom_text(aes(label=n), nudge_y=3) +
  labs(x="Fuel effiiency (mpg)", y="Weight (tons)",
       title="Seminal ggplot2 bar chart example",
       subtitle="A plot that is only useful for demonstration purposes",
       caption="Brought to you by the letter 'g'") +
  theme_ipsum_rc(grid="Y") +
  theme(axis.text.y=element_blank())
# }