Adds support for loading Steam library grid cover art which you've already added in Steam to Playnite.
I created this in a few minutes to load my custom Steam grid covers in Playnite.
Download the .pext and open it with Playnite.
You have to restart Playnite after installing the extension.
In your Playnite add-ons menu, go to Extensions settings > Metadata Sources > Custom Steam Covers, and set the path to your Steam userdata folder.
After that, simply use Edit Game Details > Download Metadata to download with the Custom Steam Covers metadata source. You can also configure it to be used on all metadata downloads by going to Settings > Metadata.