If you would like to customize the theme, follow these steps after a successful deployment:
ssh in and stop the BlockScout service:
sudo systemctl stop blockscout.service
_poa_variables.scss with appropriate theme colors.
Rebuild the static assets:
sudo npm run-script deploy (from blockscout/apps/block_scout_web/assets directory).
Restart the BlockScout service:
sudo systemctl start blockscout.service
The BlockScout application will now be running with the designated theme changes.