colorize your logs
CCZE is a robust and modular log colorizer with plugins for apm, exim, fetchmail, httpd, postfix, procmail, squid, syslog, ulogd, vsftpd, xferlog, and more.
For installation
sudo yum install ccze
and to use it:
tail -f -n 50 /var/log/firewalld | ccze #or better yet cat /var/log/firewalld | ccze|more