[documentation] Add components (button) and color information

Also-by: kprokopenko, petermueller
Bug: 357513556
Change-Id: Ie42336076e57c75737c3477c97fc210705d9cd01
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/5737516
Auto-Submit: Kim-Anh Tran <[email protected]>
Reviewed-by: Peter Müller <[email protected]>
Commit-Queue: Peter Müller <[email protected]>
diff --git a/docs/styleguide/ux/README.md b/docs/styleguide/ux/README.md
index 6fc79b8..7355499 100644
--- a/docs/styleguide/ux/README.md
+++ b/docs/styleguide/ux/README.md
@@ -8,8 +8,12 @@
 ## Table of contents
 
 1. [How to organize UI](organizing.md)
-1. [How to style UI](styling.md)
+1. [How to style UI](styleguide.md)
 1. [How to write UI text](writing.md)
 1. [Glossary](glossary.md)
 
+## UI reviews
+If you make changes to DevTools UI, make sure to involve us **early**, i.e. already in the
+UI design stage. See also the [Chrome DevTools Design Review Guidelines](../../contributing/design.md#Review-Guidelines)
+
 Back to the [Chromium DevTools Documentation](../../README.md).