Apollo Phoenix is a Chrome extension developed by the Apollo Team. It is a free tool categorized under Browsers and specifically under Add-ons & Tools. This extension allows users to enable Phoenix's look and feel on Salesforce Lightning Web Components.

With Apollo Phoenix, users can test the application of Apollo Gemini Project Phoenix styles to the components of the Salesforce Lightning Design System. It is important to note that this extension is intended for testing purposes only and is not an official Phoenix release.

By using Apollo Phoenix, developers and testers can easily assess how the Phoenix styles impact the visual appearance and user experience of Salesforce Lightning Web Components. This extension provides a convenient way to experiment with different styles and evaluate their compatibility with the Lightning Design System.

Please note that Apollo Phoenix is available exclusively for Chrome users and is free to download and use.