diff --git a/docs/themes.md b/docs/themes.md
index ab274be..e8d939c 100644
--- a/docs/themes.md
+++ b/docs/themes.md
@@ -98,6 +98,7 @@ theme:
 ```yaml
 theme:
   background-color: 243 33 25
+  contrast-multiplier: 1.2
   primary-color: 50 100 49
   positive-color: 98 82 71
   negative-color: 12 77 52