Custom Background for servers Connecting screen

Well, I am trying to help a friend use a custom background for the screen that you see when connecting to servers. All i want to do is use one picture, a screenshot, not a website, not html. Just a picture. Any help here?

just upload the image somewhere and use the url

You can upload the image to an image hosting website and then copy the url and put it in the server.cfg
for example sv_loadingurl “Your Website here”

The loadingurl will not work by putting it into server.cfg, you will have to put it in the target line of SRCDS.
Example: +sv_loadingurl “www.blablabla.com

wrong It works for me it’s in my server cfg on my Dedicated Server host