If you restored dom0 from a backup it should end up in your home folder in dom0 named like: home-restore-2023-12-10-200905. If this is missing your backup may not have restored properly.
Dark theme if you followed the global dark mode guide will need you to install some packages and change /etc/environment to get working on a new install, just review the guide and install those 2 packages and update /etc/environment.
I just did a clean 4.1 install to move between NVMes, most of what you will want to restore is in .config which you should be able to see using ls -la home-restore-[DATE]/dom0-home/[user]/ from the dom0 terminal.
I personally just brought the entire .config folder out of the backup and into my new home dir which, with the packages and /etc/environment update (as well as re-installing Whisker menu) got me back up and running exactly how I had it.
After the last restore I have made a sys_backup in my home directory where I copy over necessary files such as:
- A text file with my current
crontab -econtents. /usr/share/qubes/templates/libvirt/xen.xmlsince I have modified it./etc/default/grubGrub with primary GPU blacklisted/etc/qubesDidn’t actually need this one/etc/qubes-rpcMostly just for the Split SSH file/etc/X11/xorg.conf.dso that my AMD card in the secondary slot can start lightdm
Yours will vary of course but I would recommend it and documenting your restoration procedure if your system is modified in any way so things go smooth when you really need it.