Hi!
You should be able to install GNOME DE on Qubes OS dom0 with.
sudo qubes-dom0-update gnome-shell
Install extensions according to instructions here.
Install [email protected] and run this:
sudo cp ~/.local/share/gnome-shell/extensions/[email protected]/schemas/org.gnome.shell.extensions.pop-shell.gschema.xml /usr/share/glib-2.0/schemas/org.gnome.shell.extensions.pop-shell.gschema.xml && sudo glib-compile-schemas /usr/share/glib-2.0/schemas
Reload the shell with Alt + F2 and type r
. Use the tiling widget in the panel to enable active window hint.
Then run label.sh to enable colored window borders. Thanks to the kind people in the Qubes forum who helped me with the script.
See screenshots above. Feel free to ask for help in the comments.