Background image (local)

Hello,

I'd like to create a custom background for a project, but I'd like it to be available even if the internet connection is not provide. A possible solution would be to upload the image in the App Data of CtrlX and then copy the download link through the IDE snap, but how can I do it without it? Is the download link of the image available in the app data?

Thanks for your support!

.background_local {    
    background-image: url("https://192.168.1.1/solutions/configurations/appdata/content?path=remote-logging%2Ftest%2F");
    background-repeat: no-repeat;
    background-position: right top;
    background-size: 50%;
}