Skip to contents

Hand-drawn plot theme

Source: R/theme.R
theme_sketch.Rd

theme_sketch() turns a whole plot hand-drawn in one line: it sets a plot-wide sketch() default that every geometry mark and theme element inherits (wobbly gridlines, axis lines, ticks, and marks), on a warm paper-toned background. Text is never sketched — pass a handwriting font to complete the look.

Usage

theme_sketch(
  plot,
  roughness = 1,
  bowing = 1,
  fill_style = "hachure",
  seed = 1L,
  font = NULL,
  paper = "#f4ecd8",
  ink = "#2b2b2b"
)

Arguments

plot

A PlotSpec.

roughness, bowing, fill_style, seed

Passed to sketch() to build the plot-wide default (see sketch() for the full set of knobs).

font

Font family for all text (text is not sketched; a handwriting font such as "Comic Sans MS" or "Chilanka" sells the hand-drawn look). NULL (default) keeps the system default family.

paper, ink

Background and foreground (text/line) colours.

Value

The modified PlotSpec.

Details

It is a complete theme (like theme_cyberpunk()): the sketch it sets is only a default, so any mark's sketch = argument, any element_line() / element_rect() sketch = slot, or a scale_* override still wins. Force an individual element crisp with sketch = NA.

See also

sketch(), theme_gray(), mark_point()

Examples

vplot(mtcars) |>
  mark_point(x = wt, y = mpg, color = factor(cyl)) |>
  theme_sketch()


# tune the wobble; a crosshatch-filled bar layer that stays crisp
df <- data.frame(g = c("a", "b", "c"), n = c(3, 5, 2))
vplot(df) |>
  mark_bar(x = g, y = n, fill = g) |>
  theme_sketch(roughness = 1.4, fill_style = "crosshatch", seed = 7)