More rcmd check fixes

* fix style of ggplot2, xaringan pkg refs
* fix name of theme_xaringan_restore_defaults()

NAMESPACE

 export(theme_xaringan_base)
 export(theme_xaringan_get_value)
 export(theme_xaringan_inverse)
+export(theme_xaringan_restore_defaults)
 export(theme_xaringan_set_defaults)
 export(write_extra_css)
 export(write_xaringan_theme)
-export(xaringan_theme_restore_defaults)
 importFrom(grDevices,col2rgb)
 importFrom(grDevices,hsv)
 importFrom(grDevices,rgb)

R/ggplot2.R

 #'
 #' **Lifecycle:** [Experimental](https://www.tidyverse.org/lifecycle/#experimental).
 #'
-#' Creates [ggplot2] themes to match the xaringanthemer theme used in the
-#' [xaringan] slides that seamlessly matches the "normal" slide colors and
+#' Creates \pkg{ggplot2} themes to match the xaringanthemer theme used in the
+#' \pkg{xaringan} slides that seamlessly matches the "normal" slide colors and
 #' styles.
 #'
 #' @param text_color Color for text and foreground, inherits from `text_color`
 #'
 #' **Lifecycle:** [Experimental](https://www.tidyverse.org/lifecycle/#experimental).
 #'
-#' A [ggplot2] xaringanthemer plot theme to seamlessly match the "inverse"
-#' [xaringan] slide colors and styles as styled by [xaringanthemer].
+#' A \pkg{ggplot2} xaringanthemer plot theme to seamlessly match the "inverse"
+#' \pkg{xaringan} slide colors and styles as styled by [xaringanthemer].
 #'
 #' @param text_color Color for text and foreground, inherits from `text_color`
 #' @param background_color Color for background, inherits from
 #'
 #' **Lifecycle:** [Experimental](https://www.tidyverse.org/lifecycle/#experimental).
 #'
-#' Provides a base plot theme for [ggplot2] to match the [xaringan] slide theme
+#' Provides a base plot theme for \pkg{ggplot2} to match the \pkg{xaringan} slide theme
 #' created by [xaringanthemer]. The theme is designed to create a general plot
 #' style from two colors, a `background_color` and a `text_color` (or foreground
 #' color). Also accepts an `accent_color` and an `accent_secondary_color` that are
 #' @param accent_color Color for titles and accents, inherits from
 #'   `header_color` or `text_color`. Used for the `title` base setting in
 #'   [ggplot2::theme()], and additionally for setting the `color` or `fill` of
-#'   [ggplot2] geom defaults.
+#'   \pkg{ggplot2} geom defaults.
 #' @param accent_secondary_color Color for secondary accents, inherits from
-#'   `text_bold_color` or `accent_color`. Used only when setting [ggplot2] geom
+#'   `text_bold_color` or `accent_color`. Used only when setting \pkg{ggplot2} geom
 #'   defaults.
-#' @param set_ggplot_defaults Should defaults be set for [ggplot2] _geoms_?
+#' @param set_ggplot_defaults Should defaults be set for \pkg{ggplot2} _geoms_?
 #'   Defaults to TRUE. To restore ggplot's defaults, or the previously set geom
 #'   defaults, see [theme_xaringan_restore_defaults()].
 #' @param text_font Font to use for text elements, passed to
 #'
 #' **Lifecycle:** [Experimental](https://www.tidyverse.org/lifecycle/#experimental).
 #'
-#' Set [ggplot2] _geom_ defaults to match [theme_xaringan()] with
+#' Set \pkg{ggplot2} _geom_ defaults to match [theme_xaringan()] with
 #' `theme_xaringan_set_defaults()` and restore the standard or previously-set
 #' defaults with `theme_xaringan_restore_defaults()`. By default,
 #' `theme_xaringan_set_defaults()` is run with [theme_xaringan()] or
 #'
 #' @family xaringanthemer ggplot2 themes
 #' @inheritParams theme_xaringan
+#' @inheritParams theme_xaringan_base
 #' @return Invisibly returns a list of the current ggplot2 geom defaults
 #' @export
 theme_xaringan_set_defaults <- function(
   background_color = NULL,
   accent_color = text_color,
   accent_secondary_color = accent_color,
-  text_family = NULL
+  text_font = NULL
 ) {
   requires_package("ggplot2")
 
                         color  = accent_secondary_color),
     "spoke"      = list(color  = text_color),
     "label"      = list(color  = text_color,
-                        family = text_family %||% get_theme_font("text")),
+                        family = text_font %||% get_theme_font("text")),
     "text"       = list(color  = text_color,
-                        family = text_family %||% get_theme_font("text")),
+                        family = text_font %||% get_theme_font("text")),
     "rect"       = list(fill   = text_color),
     "tile"       = list(fill   = text_color),
     "violin"     = list(fill   = text_color),
   invisible(previous_defaults)
 }
 
-#' @describeIn theme_xaringan_set_defaults Restore previous or standard [ggplot2] _geom_ defaults.
-#' @inheritParams theme_xaringan
+#' @describeIn theme_xaringan_set_defaults Restore previous or standard
+#'   \pkg{ggplot2} _geom_ defaults.
 #' @return Invisibly returns a list of the current ggplot2 geom defaults
 #' @export
-xaringan_theme_restore_defaults <- function() {
+theme_xaringan_restore_defaults <- function() {
   requires_package("ggplot2")
   requires_xaringanthemer_env()
 
 #' Color and fill single-color scales for discrete and continuous values,
 #' created using the primary accent color of the xaringanthemer styles.
 #'
-#' @param ... Arguments passed on to the appropriate scale function, one of
-#'   [colorspace::scale_color_discrete_sequential],
+#' @param ... Arguments passed on to either the \pkg{colorspace} scale
+#'   functions — one of [colorspace::scale_color_discrete_sequential],
 #'   [colorspace::scale_color_continuous_sequential],
 #'   [colorspace::scale_fill_discrete_sequential], or
-#'   [colorspace::scale_fill_continuous_sequential].
+#'   [colorspace::scale_fill_continuous_sequential] — or to
+#'   [ggplot2::continuous_scale] or [ggplot2::discrete_scale].
 #' @param color A color value, in hex, to override the default color. Otherwise,
 #'   the primary color of the resulting scale is chosen from the xaringanthemer
 #'   slide styles.
 #' @param direction Direction of the discrete scale. Use values less than 0 to
 #'   reverse the direction, e.g. `direction = -1`.
 #' @inheritParams colorspace::scale_color_continuous_sequential
-#' @param ... Additional arguments passed to [ggplot2::continuous_scale()] or
-#'   [ggplot2:discrete_scale()].
 #' @param aes_type The type of aesthetic to which the scale is being applied.
 #'   One of "color", "colour", or "fill".
 #' @name scale_xaringan

man/scale_xaringan.Rd

 \item{aes_type}{The type of aesthetic to which the scale is being applied.
 One of "color", "colour", or "fill".}
 
-\item{...}{Arguments passed on to the appropriate scale function, one of
-\link[colorspace:scale_color_discrete_sequential]{colorspace::scale_color_discrete_sequential},
+\item{...}{Arguments passed on to either the \pkg{colorspace} scale
+functions — one of \link[colorspace:scale_color_discrete_sequential]{colorspace::scale_color_discrete_sequential},
 \link[colorspace:scale_color_continuous_sequential]{colorspace::scale_color_continuous_sequential},
 \link[colorspace:scale_fill_discrete_sequential]{colorspace::scale_fill_discrete_sequential}, or
-\link[colorspace:scale_fill_continuous_sequential]{colorspace::scale_fill_continuous_sequential}.}
+\link[colorspace:scale_fill_continuous_sequential]{colorspace::scale_fill_continuous_sequential} — or to
+\link[ggplot2:continuous_scale]{ggplot2::continuous_scale} or \link[ggplot2:discrete_scale]{ggplot2::discrete_scale}.}
 
 \item{color}{A color value, in hex, to override the default color. Otherwise,
 the primary color of the resulting scale is chosen from the xaringanthemer
 \item{begin}{Number in the range of \code{[0, 1]} indicating to which point in the color scale the smallest data value should be mapped.}
 
 \item{end}{Number in the range of \code{[0, 1]} indicating to which point in the color scale the largest data value should be mapped.}
-
-\item{...}{Additional arguments passed to \code{\link[ggplot2:continuous_scale]{ggplot2::continuous_scale()}} or
-\code{\link[=ggplot2:discrete_scale]{ggplot2:discrete_scale()}}.}
 }
 \description{
 \strong{Lifecycle:} \href{https://www.tidyverse.org/lifecycle/#experimental}{Experimental}.

man/theme_xaringan.Rd

   \item{accent_color}{Color for titles and accents, inherits from
 \code{header_color} or \code{text_color}. Used for the \code{title} base setting in
 \code{\link[ggplot2:theme]{ggplot2::theme()}}, and additionally for setting the \code{color} or \code{fill} of
-\link{ggplot2} geom defaults.}
+\pkg{ggplot2} geom defaults.}
   \item{accent_secondary_color}{Color for secondary accents, inherits from
-\code{text_bold_color} or \code{accent_color}. Used only when setting \link{ggplot2} geom
+\code{text_bold_color} or \code{accent_color}. Used only when setting \pkg{ggplot2} geom
 defaults.}
-  \item{set_ggplot_defaults}{Should defaults be set for \link{ggplot2} \emph{geoms}?
+  \item{set_ggplot_defaults}{Should defaults be set for \pkg{ggplot2} \emph{geoms}?
 Defaults to TRUE. To restore ggplot's defaults, or the previously set geom
 defaults, see \code{\link[=theme_xaringan_restore_defaults]{theme_xaringan_restore_defaults()}}.}
   \item{text_font}{Font to use for text elements, passed to
 \description{
 \strong{Lifecycle:} \href{https://www.tidyverse.org/lifecycle/#experimental}{Experimental}.
 
-Creates \link{ggplot2} themes to match the xaringanthemer theme used in the
-\link{xaringan} slides that seamlessly matches the "normal" slide colors and
+Creates \pkg{ggplot2} themes to match the xaringanthemer theme used in the
+\pkg{xaringan} slides that seamlessly matches the "normal" slide colors and
 styles.
 }
 \examples{

man/theme_xaringan_base.Rd

 
 \item{...}{Ignored}
 
-\item{set_ggplot_defaults}{Should defaults be set for \link{ggplot2} \emph{geoms}?
+\item{set_ggplot_defaults}{Should defaults be set for \pkg{ggplot2} \emph{geoms}?
 Defaults to TRUE. To restore ggplot's defaults, or the previously set geom
 defaults, see \code{\link[=theme_xaringan_restore_defaults]{theme_xaringan_restore_defaults()}}.}
 
 \item{accent_color}{Color for titles and accents, inherits from
 \code{header_color} or \code{text_color}. Used for the \code{title} base setting in
 \code{\link[ggplot2:theme]{ggplot2::theme()}}, and additionally for setting the \code{color} or \code{fill} of
-\link{ggplot2} geom defaults.}
+\pkg{ggplot2} geom defaults.}
 
 \item{accent_secondary_color}{Color for secondary accents, inherits from
-\code{text_bold_color} or \code{accent_color}. Used only when setting \link{ggplot2} geom
+\code{text_bold_color} or \code{accent_color}. Used only when setting \pkg{ggplot2} geom
 defaults.}
 
 \item{text_font}{Font to use for text elements, passed to
 \description{
 \strong{Lifecycle:} \href{https://www.tidyverse.org/lifecycle/#experimental}{Experimental}.
 
-Provides a base plot theme for \link{ggplot2} to match the \link{xaringan} slide theme
+Provides a base plot theme for \pkg{ggplot2} to match the \pkg{xaringan} slide theme
 created by \link{xaringanthemer}. The theme is designed to create a general plot
 style from two colors, a \code{background_color} and a \code{text_color} (or foreground
 color). Also accepts an \code{accent_color} and an \code{accent_secondary_color} that are

man/theme_xaringan_inverse.Rd

   \item{accent_color}{Color for titles and accents, inherits from
 \code{header_color} or \code{text_color}. Used for the \code{title} base setting in
 \code{\link[ggplot2:theme]{ggplot2::theme()}}, and additionally for setting the \code{color} or \code{fill} of
-\link{ggplot2} geom defaults.}
+\pkg{ggplot2} geom defaults.}
   \item{accent_secondary_color}{Color for secondary accents, inherits from
-\code{text_bold_color} or \code{accent_color}. Used only when setting \link{ggplot2} geom
+\code{text_bold_color} or \code{accent_color}. Used only when setting \pkg{ggplot2} geom
 defaults.}
-  \item{set_ggplot_defaults}{Should defaults be set for \link{ggplot2} \emph{geoms}?
+  \item{set_ggplot_defaults}{Should defaults be set for \pkg{ggplot2} \emph{geoms}?
 Defaults to TRUE. To restore ggplot's defaults, or the previously set geom
 defaults, see \code{\link[=theme_xaringan_restore_defaults]{theme_xaringan_restore_defaults()}}.}
   \item{text_font}{Font to use for text elements, passed to
 \description{
 \strong{Lifecycle:} \href{https://www.tidyverse.org/lifecycle/#experimental}{Experimental}.
 
-A \link{ggplot2} xaringanthemer plot theme to seamlessly match the "inverse"
-\link{xaringan} slide colors and styles as styled by \link{xaringanthemer}.
+A \pkg{ggplot2} xaringanthemer plot theme to seamlessly match the "inverse"
+\pkg{xaringan} slide colors and styles as styled by \link{xaringanthemer}.
 }
 \examples{
 if (requireNamespace("ggplot2", quietly = TRUE)) {

man/theme_xaringan_set_defaults.Rd

 % Please edit documentation in R/ggplot2.R
 \name{theme_xaringan_set_defaults}
 \alias{theme_xaringan_set_defaults}
-\alias{xaringan_theme_restore_defaults}
+\alias{theme_xaringan_restore_defaults}
 \title{Set and Restore ggplot2 geom Defaults}
 \usage{
 theme_xaringan_set_defaults(text_color = NULL, background_color = NULL,
   accent_color = text_color, accent_secondary_color = accent_color,
-  text_family = NULL)
+  text_font = NULL)
 
-xaringan_theme_restore_defaults()
+theme_xaringan_restore_defaults()
 }
 \arguments{
 \item{text_color}{Color for text and foreground, inherits from \code{text_color}}
 
 \item{accent_secondary_color}{Color for secondary accents, inherits from
 \code{text_bold_color}}
+
+\item{text_font}{Font to use for text elements, passed to
+\code{\link[sysfonts:font_add_google]{sysfonts::font_add_google()}}, if available and \code{text_font_use_google} is
+\code{TRUE}. Inherits from \code{text_font_family}.}
 }
 \value{
 Invisibly returns a list of the current ggplot2 geom defaults
 \description{
 \strong{Lifecycle:} \href{https://www.tidyverse.org/lifecycle/#experimental}{Experimental}.
 
-Set \link{ggplot2} \emph{geom} defaults to match \code{\link[=theme_xaringan]{theme_xaringan()}} with
+Set \pkg{ggplot2} \emph{geom} defaults to match \code{\link[=theme_xaringan]{theme_xaringan()}} with
 \code{theme_xaringan_set_defaults()} and restore the standard or previously-set
 defaults with \code{theme_xaringan_restore_defaults()}. By default,
 \code{theme_xaringan_set_defaults()} is run with \code{\link[=theme_xaringan]{theme_xaringan()}} or
 }
 \section{Functions}{
 \itemize{
-\item \code{xaringan_theme_restore_defaults}: Restore previous or standard \link{ggplot2} \emph{geom} defaults.
+\item \code{theme_xaringan_restore_defaults}: Restore previous or standard
+\pkg{ggplot2} \emph{geom} defaults.
 }}
 
 \seealso{