Accessing CSS files on Docker

[eetaylog]

Sorry if this has been asked before, but how do you access the config files in DiskStation on a Synology NAS? 

I want to add a CSS theme file to my server, but cant access anything in my Docker folder.

Edit: Please ignore, ive just seen in the documentation that the custom CSS is added via the dashboard.

[Efficient_Good_5784]

For future reference, if you installed through Synology's Docker app, you would just stop Jellyfin and edit the container to mount the /config folder to any location on your NAS.