Polymer Ready is a simple Chrome extension that detects Polymer and Custom components on webpages and displays an icon in the address bar. Developed by François Beaufort, this free extension is a useful tool for developers working with Polymer and Custom components.

The extension listens for `dom-change` events to detect the presence of Polymer and Custom components. When it detects these components, it shows an icon in the address bar, providing a visual indication to the user. This feature helps developers quickly identify if a webpage is using Polymer or Custom components.

Polymer Ready also includes a tinted background highlight feature, which was added in versionThis feature enhances the visibility of the icon, making it even easier to spot when browsing webpages.

Overall, Polymer Ready is a handy Chrome extension for developers working with Polymer and Custom components. It provides a convenient way to visually identify the presence of these components on webpages. The extension is free to use and can be downloaded from the Chrome Web Store.