Option to define a custom font for the table

The opt_table_font() function makes it possible to define a custom font for the entire gt table. The standard fallback fonts are still set by default but the font defined here will take precedence. You could still have different fonts in select locations in the table, and for that you would need to use tab_style() in conjunction with the cell_text() helper function.

We have the option to supply either a system font for the font_name, or, a font available at the Google Fonts service by use of the google_font() helper function.

opt_table_font(data, font, weight = NULL, style = NULL, add = TRUE)

Arguments

data	A table object that is created using the gt() function.
font	Either the name of a font available in the user system or a call to google_font(), which has a large selection of typefaces.
weight	The weight of the font. Can be a text-based keyword such as "normal", "bold", "lighter", "bolder", or, a numeric value between 1 and 1000, inclusive. Note that only variable fonts may support the numeric mapping of weight.
style	The text style. Can be one of either "normal", "italic", or "oblique".
add	Should this font be added to the front of the already-defined fonts for the table? By default, this is TRUE and is recommended since the list serves as fallbacks when certain fonts are not available.

Value

An object of class gt_tbl.

Figures

Function ID

9-7

See also

Other Table Option Functions: opt_align_table_header(), opt_all_caps(), opt_css(), opt_footnote_marks(), opt_row_striping(), opt_table_lines(), opt_table_outline()

Examples

if (interactive()) {

# Use `sp500` to create a small gt table,
# using `fmt_currency()` to provide a
# dollar sign for the first row of monetary
# values; then, set a larger font size for
# the table and use the 'Merriweather' font
# (from Google Fonts, via `google_font()`)
# with two font fallbacks ('Cochin' and the
# catchall 'Serif' group)
tab_1 <-
  sp500 %>%
  dplyr::slice(1:10) %>%
  dplyr::select(-volume, -adj_close) %>%
  gt() %>%
  fmt_currency(
    columns = 2:5,
    rows = 1,
    currency = "USD",
    use_seps = FALSE
  ) %>%
  tab_options(table.font.size = px(18)) %>%
  opt_table_font(
    font = list(
      google_font(name = "Merriweather"),
      "Cochin", "Serif"
    )
  )

# Use `sza` to create an eleven-row table;
# within `opt_table_font()`, set up a
# preferred list of sans-serif fonts that
# are commonly available in macOS (using
# part of the `default_fonts()` vector as
# a fallback)
# and Windows 10
tab_2 <-
  sza %>%
  dplyr::filter(
    latitude == 20 &
      month == "jan" &
      !is.na(sza)
  ) %>%
  dplyr::select(-latitude, -month) %>%
  gt() %>%
  opt_table_font(
    font = c(
      "Helvetica Neue", "Segoe UI",
      default_fonts()[-c(1:3)]
    )
  ) %>%
  opt_all_caps()

}