diff --git a/core/src/components/toggle/readme.md b/core/src/components/toggle/readme.md
index ab9b7c8146..c87a506478 100644
--- a/core/src/components/toggle/readme.md
+++ b/core/src/components/toggle/readme.md
@@ -123,6 +123,15 @@ Emitted when the toggle has focus.
Emitted when the styles change.
+## CSS Custom Properties
+
+| Name | Description |
+| ----------------------------- | -------------------------------------------- |
+| `--background` | Background of the toggle |
+| `--background-checked` | Background of the toggle when checked |
+| `--handle-background` | Background of the toggle handle |
+| `--handle-background-checked` | Background of the toggle handle when checked |
+
----------------------------------------------
diff --git a/core/src/components/toggle/test/standalone/index.html b/core/src/components/toggle/test/standalone/index.html
index ee847ba728..0bf88914e9 100644
--- a/core/src/components/toggle/test/standalone/index.html
+++ b/core/src/components/toggle/test/standalone/index.html
@@ -23,9 +23,17 @@
+
+
+