I tried to change login screen background from standard to a picture I downloaded and now I am stuck, I cant get to the login screen.
All is a list and lots of 'ok' after it and then the screen goes blank.
Here is the instruction I followed. LINK
CAN I Undo my mistake?
Here is what I thought I did successfully;
sudo gedit /usr/share/gnome-shell/theme/ubuntu.css
Edited Content:
#lockDialogGroup {
background: #2c001e url(file:///[fileLocation/filename.png]); (I put my own picture in here)
background-repeat: no-repeat;
background-size: cover;
background-position: center;
}