Earlier this year I created a simple vSphere SDK for Perl script that allows you to update ESXi's DCUI (Direct Console User Interface) banner with multiple lines of text. I originally thought you could not customize the text color or the background color, though recently I found out that was not the case. While doing some testing on ESXi 4.1, I noticed two files (support,welcome) located under /etc/vmware and looking at the contents of support, it made realize we might be able to change the colors.