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 Allow admins to add custom css to their nextcloud instance from inside the theming settings.
 
 ![](https://github.com/juliushaertl/theming_customcss/raw/master/screenshot.png)
+
+## Use theming color values
+
+With Nextcloud 14 you can use CSS custom properties to make use of the variables that are available from the [css-variables.scss](https://github.com/nextcloud/server/blob/master/core/css/css-variables.scss) file:
+
+Example:
+
+```
+#element {
+  color: var(--color-primary);
+}
+```