Annotate mode: draw on UI → code

Google just showed off Annotate mode in Google AI Studio and it’s exactly the kind of vibe-coding magic we’ve been waiting for. You open your app in the Build view, hit Annotate, literally draw on the live preview. Little arrows, circles, quick notes like “make this button sticky” or “padding 24px” and Gemini turns those markings into real code changes, then refreshes the preview.

It’s surprisingly natural and super innovative!

Handy links if you want to see the demo clip for the feature on X/Twitter