diff --git a/NEWS.md b/NEWS.md
index b89369c..87e0971 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,5 @@
 # dimensio 0.4.0
-** Use graphics instead of ggplot2.**
+**Use graphics instead of ggplot2.**
 
 ## New classes and methods
 * Add `screeplot()` to produce a scree plot.
diff --git a/R/AllGenerics.R b/R/AllGenerics.R
index 41dd48b..9689bec 100644
--- a/R/AllGenerics.R
+++ b/R/AllGenerics.R
@@ -567,8 +567,9 @@ NULL
 #'  If `NULL` (the default), no highlighting is applied.
 #' @param main A [`character`] string giving a main title for the plot.
 #' @param sub A [`character`] string giving a subtitle for the plot.
-#' @param ... Currently not used.
+#' @param ... Further [graphical parameters][graphics::par] (see below).
 #' @details
+#'  Available statistics:
 #'  \describe{
 #'   \item{`observation`}{Whether an observation is active or supplementary.}
 #'   \item{`mass`}{Weight/mass of each observation.}
@@ -576,6 +577,18 @@ NULL
 #'   \item{`contribution`}{Joint contributions to the definition of `axes`.}
 #'   \item{`cos2`}{Joint \eqn{cos^2}{cos2} along `axes`.}
 #'  }
+#'
+#'  Commonly used [graphical parameters][graphics::par] are:
+#'  \describe{
+#'   \item{`col`}{The colors for lines and points. Multiple colors can be
+#'                specified so that each point can be given its own color.}
+#'   \item{`pch`}{A vector of plotting characters or symbols.}
+#'   \item{`cex`}{A `numeric` vector giving the amount by which plotting
+#'                characters and symbols should be scaled relative to the
+#'                default.}
+#'   \item{`lty`}{A vector of line types.}
+#'   \item{`lwd`}{A vector of line widths.}
+#'  }
 #' @return
 #'  `viz_*()` is called for its side-effects: it results in a graphic
 #'  being displayed. Invisibly returns `x`.
diff --git a/man/viz_coordinates.Rd b/man/viz_coordinates.Rd
index d6c79f2..6f65352 100644
--- a/man/viz_coordinates.Rd
+++ b/man/viz_coordinates.Rd
@@ -97,7 +97,7 @@ viz_variables(x, ...)
 \arguments{
 \item{x}{A \code{\linkS4class{CA}} or \code{\linkS4class{PCA}} object.}
 
-\item{...}{Currently not used.}
+\item{...}{Further \link[graphics:par]{graphical parameters} (see below).}
 
 \item{axes}{A length-two \code{\link{numeric}} vector giving the dimensions to be
 plotted.}
@@ -130,6 +130,7 @@ being displayed. Invisibly returns \code{x}.
 Plots principal coordinates.
 }
 \details{
+Available statistics:
 \describe{
 \item{\code{observation}}{Whether an observation is active or supplementary.}
 \item{\code{mass}}{Weight/mass of each observation.}
@@ -137,6 +138,18 @@ Plots principal coordinates.
 \item{\code{contribution}}{Joint contributions to the definition of \code{axes}.}
 \item{\code{cos2}}{Joint \eqn{cos^2}{cos2} along \code{axes}.}
 }
+
+Commonly used \link[graphics:par]{graphical parameters} are:
+\describe{
+\item{\code{col}}{The colors for lines and points. Multiple colors can be
+specified so that each point can be given its own color.}
+\item{\code{pch}}{A vector of plotting characters or symbols.}
+\item{\code{cex}}{A \code{numeric} vector giving the amount by which plotting
+characters and symbols should be scaled relative to the
+default.}
+\item{\code{lty}}{A vector of line types.}
+\item{\code{lwd}}{A vector of line widths.}
+}
 }
 \examples{
 ## Load data