| `com.docker.desktop.extension.icon`         | Yes      | The extension icon (format: .svg .png .jpg)                                                                                                                                                                                                                                                                                                                                                                                                                                                           | `https://example.com/assets/image.svg`                                                                                                                                                                                                                          |
| `com.docker.extension.screenshots`          | Yes      | A JSON array of image URLs and an alternative text displayed to users (in the order they appear in your metadata) in your extension's details page. **Note:** The recommended size for screenshots is 2400x1600 pixels.                                                                                                                                                                                                                                                                               | `[{"alt":"alternative text for image 1",` `"url":"https://example.com/image1.png"},` `{"alt":"alternative text for image2",` `"url":"https://example.com/image2.jpg"}]`                                                                                         |
| `com.docker.extension.detailed-description` | Yes      | Additional information in plain text or HTML about the extension to display in the details dialog.                                                                                                                                                                                                                                                                                                                                                                                                    | `My detailed description` or `<h1>My detailed description</h1>`                                                                                                                                                                                                 |
| `com.docker.extension.publisher-url`        | Yes      | The publisher website URL to display in the details dialog.                                                                                                                                                                                                                                                                                                                                                                                                                                           | `https://example.com`                                                                                                                                                                                                                                           |
| `com.docker.extension.additional-urls`      | No       | A JSON array of titles and additional URLs displayed to users (in the order they appear in your metadata) in your extension's details page. Docker recommends you display the following links if they apply: documentation, support, terms of service, and privacy policy links.                                                                                                                                                                                                                      | `[{"title":"Documentation","url":"https://example.com/docs"},` `{"title":"Support","url":"https://example.com/bar/support"},` `{"title":"Terms of Service","url":"https://example.com/tos"},` `{"title":"Privacy policy","url":"https://example.com/privacy"}]` |