# v4 => v5

## ICP

![](https://1581899417-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGFy6uwQo3CrYwMo2aNLV%2Fuploads%2FqGJGM1lG0FBWV78teI4A%2FScreenshot%202022-03-30%20at%2012.04.24.png?alt=media\&token=65944ac7-9879-4b6a-bd58-64a1fc887983)

ICP Writer provider, the name of the provider that Writer will utilise for rendering images.\
`Default value is:`` `**`writer`**

\
If [Image Content Provider (ICP) 1.3.0](https://app.gitbook.com/o/-LXJkK7tFJY9DjO_rmf3/s/sP8r96eVtWOLKe5DcFcy/) or later is installed this provider should be installed and ready to use with default value, otherwise the provider named above must be [configured](https://app.gitbook.com/s/sP8r96eVtWOLKe5DcFcy/config/default-config) in ICP.