Maybe the elementary-theme isn't deleted, but it just changed it somehow? Try opening terminal and execute: gsettings set org.gnome.desktop.interface gtk-theme elementary This will set elementary as your theme again. If you don't want to use the command line you could install Gnome-tweak-tool or elementary tweak for changing.


what I suggest you is to install via terminal lightdm and pantheon-greeter also. sudo apt install lightdm pantheon-greeter. Then run sudo dpkg --configure -a.


My eOS desktop was ruined by installing a GNOME screensaver. Re-installed eOS and problem solved.

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