diff --git a/README.Rmd b/README.Rmd
index aa034de..25c9478 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -238,7 +238,7 @@
 
 There are several options that control the appearance of revealjs presentations:
 
--   `theme` specifies the visual theme for the presentation. It defaults to the dedicated IDS corporate design theme (`"ids"`), which is the raison d'être of this package; the stock reveal.js themes are listed here only for completeness, as alternatives that will rarely be used in the IDS context: `r knitr::combine_words(setdiff(revealjs.ids:::revealjs_themes(), c("default", "ids")), before = '"', and = " or ")` (`"dark"` is an alias for `"black"`).
+-   `theme` specifies the visual theme for the presentation. The dedicated IDS corporate design theme (`"ids"`) is the default and the only supported theme.
 
 -   `highlight` specifies the syntax highlighting style. Supported styles include `r knitr::combine_words(rmarkdown:::highlighters(), before = '"', and = " or ")`. Pass null to prevent syntax highlighting.
 
@@ -253,8 +253,6 @@
     center: true
 ```
 
-Documentation of the rarely used stock themes: [reveal.js themes](https://revealjs.com/themes/)
-
 ## Slide Transitions
 
 You can use the `transition` and `background_transition` options to specify the global default slide transition style: