To begin the upgrade process from Shock OS 6.0 Finlay to Shock OS 7.0 Garrett, open a terminal window (CTRL+ALT+T) and paste the following command:
rm /tmp/upgradetoshockos7 & wget https://sourceforge.net/projects/shock-os-download-mirror/files/Upgrade-Packages/Standalone/upgradetoshockos7 -P /tmp && chmod +x /tmp/upgradetoshockos7 && pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY /tmp/upgradetoshockos7
Shock OS 7.0 Garrett centers new windows by default. However, Shock OS 6.0 Finlay does not. If you want to center windows by default, simply paste the following command into a terminal:
dconf write /org/mate/marco/general/center-new-windows "true"
NOTE: This is a user preference, meaning all existing users who want windows centered by default will need to run this command in a terminal. New users will not need to run this command, as the preference will be enabled by default.
NOTE: Some apps (such as 'Desktop Icons') may show preferences that do not match your configuration. To fix this, simply click 'Apply' and your configuration will match the preferences shown in the app.