add images

Author: hahnbeelee

images/dropdowns-dark.png

@@ -84,6 +84,12 @@ The icon values are [fontawesome icons](https://fontawesome.com/search)
 
 ## Dropdowns
 
+<Frame>
+  <img className="block dark:hidden rounded-md" src="/images/dropdowns-light.png" />
+
+  <img className="hidden dark:block rounded-md" src="/images/dropdowns-dark.png" />
+</Frame>
+
 Dropdowns show up in the same place as anchors, but are consolidated into a single dropdown.
 We also recommend that you set an icon for each dropdown item ([options](https://fontawesome.com/search)).
 ```json docs.json