> For the complete documentation index, see [llms.txt](https://webibazaar.gitbook.io/lyra-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://webibazaar.gitbook.io/lyra-documentation/collection-page/collection-banner-using-metafield.md). # Collection banner using metafield {% embed url="" %} ## Adding metafield definition Before you can add Collection image(metafield value) to specific collections, you need to add the necessary metafield definition for this information. {% hint style="info" %} **Recommendation Size**\ Collection image desktop size: 500x500\ Slideshow image mobile size: 1920x650 {% endhint %} 1. From your Shopify admin, go to **Settings** > **Custom data** > **Collections**
2. Click **Add definition**
3. In the **Name** field, enter `Collection image.`In the **Namespace and key** field, enter `custom.collection_image`
4. Click **Select type** then select **File.**
5. Than select **Accept all file types.** 6. Click **Save** to save the definition.
7. You should see the **Collection image** in the list of definitions by now.