theme helpers: provide links to examples

Author: gordonwoodhull

R/theme.R

@@ -3,8 +3,13 @@
 #' Create a theme using background and foreground colors (`theme_colors_*`) or
 #' using a **brand.yml** file (`theme_brand_*`).
 #'
-#' The use of the theme will depend on the package. See the vignettes for
-#' usage examples.
+#' The use of the theme will depend on the package. Please see
+#' [light/dark renderings examples](https://examples.quarto.pub/lightdark-renderings-examples/ggplot2.html)
+#' for examples using each supported package with dark mode, `theme_brand_*`,
+#' and `renderings: [light, dark]`,
+#' or [theme helper vignetes](https://quarto-dev.github.io/quarto-r/articles/theme-helpers.html)
+#' for examples using each package and `theme_colors_*` to specify the
+#' background and foreground colors directly.
 #'
 #' @param bg The background color
 #' @param fg The foreground color