tests/testthat/_snaps/theme.md

In tidyverse/ggplot2: Create Elegant Data Visualisations Using the Grammar of Graphics

modifying theme element properties with + operator works

Code
  theme_grey() + "asdf"
Condition
  Error:
  ! Can't add `"asdf"` to a theme object.

replacing theme elements with %+replace% operator works

Code
  theme_grey() + "asdf"
Condition
  Error:
  ! Can't add `"asdf"` to a theme object.

theme validation happens at build stage

The `text` theme element must be a <element_text> object.

Theme element `text` must have class <element_text>.

incorrect theme specifications throw meaningful errors

Can't merge the `line` theme element.
Caused by error in `merge_element()`:
! Only elements of the same class can be merged.

Theme element `line` must have class <element_line>.

Theme element `test` has `NULL` property without default: fill, colour, linewidth, and linetype.

`new` must be a <theme> object, not the string "foo".

element tree can be modified

The `blablabla` theme element is not defined in the element hierarchy.

The `blablabla` theme element must be a <character> object.

The `blablabla` theme element must be a <unit> object.

The `blablabla` theme element must be a <element_text> object.

`element_tree` must have names.

`element_tree` must have elements constructed with `el_def()`.
i Invalid structure: "foo"

Invalid parent in `element_tree`: "foo".

elements can be merged

Code
  merge_element(text_base, rect_base)
Condition
  Error in `merge_element()`:
  ! Only elements of the same class can be merged.

Theme elements are checked during build

`plot.title.position` must be one of "panel" or "plot", not "test".

`plot.caption.position` must be one of "panel" or "plot", not "test".

`plot.tag.position` must be one of "topleft", "top", "topright", "left", "right", "bottomleft", "bottom", or "bottomright", not "test".
i Did you mean "left"?

subtheme functions rename arguments as intended

Ignoring unknown `theme()` elements: foo and bar.

Theme validation behaves as expected

The `aspect.ratio` theme element must be a <numeric/integer> object.

theme() warns about conflicting palette options

The `options('ggplot2.discrete.colour')` setting is incompatible with the `palette.colour.discrete` theme setting.
i You can set `options(ggplot2.discrete.colour = NULL)`.

tidyverse/ggplot2 documentation built on April 13, 2025, 11:34 a.m.