I am fairly new to Linux and Ubuntu and I'm trying Lubuntu out for the first time, I would like to know step-by-step how I would change the look and layout of my login screen. I've heard lightdm-gtk-greeter is a good way to go, but I can't get the settings manager to actually work, can anyone help me out here?
If you are using LUbuntu 19.10 as I am then the sddm search lead me to "https://forum.kde.org/viewtopic.php?t=138785". Cobber said that he changed this "/usr/share/sddm/themes/breeze/theme.conf" file.
Going into my own settings I found this folder "/usr/share/sddm/themes/lubuntu " Where I had a file called "wall.png" and a file "them.conf" with the command "background=wall.png". I just changed the picture to another one that I called wall.png and it used the new picture as my background.
Hope this helps. Lubuntu 19.04 probably will work the same since they are practically the same but I did not actually test it.