What's the point of this forum when people aren't allowed to ask questions?

Nope. Black interface and no idea what you're referring to with the "editors" jar files.

I am trying to move SH3D from a Windows 7 PC to a Linux PC, but have no idea where to put the settings and library files.

It's Zorin OS 18 Pro
Ubuntu 24.04 LTS
Linux Kernel 6.14.0-35-generic

I read it's located in the user folder as .eteks/sweethome3d, but there is nothing there.

Thanks