dconf

Once installed you can simply create a snapshot using dconf command:

dconf

It will write snapshot in /var/log/dconf/ directory. To view current snapshot info, enter:

zcat /var/log/dconf/dconf-$HOSTNAME-latest.log.gz

To check the latest changes against the previous snapshot:

zdiff -u /var/log/dconf/dconf-$HOSTNAME-previous.log.gz /var/log/dconf/dconf-$HOSTNAME-latest.log.gz

dconf