Yes it is customizable.
"Hidden behind the smooth closed front panel and invisible when powered off, sits our Bitfenix ICON™ 2.8" Logo Display. It connects directly to your motherboard via an internal USB header and lets you drag and drop any color image onto the display to customize your build. We published the entire sourcecode, opening the door for developers and tinkerers to create animated and interactive ICON apps."
from http://www.bitfenix.com/global/en/products/chassis/aegis/