On the interior pictures of the Orion capsule there is a distinct pattern visible above the Callisto tech demo console:
Source: NASA, highlight by me
What is the reason/meaning of this pattern?
My searching the web didn't turn up anything useful that's why I'm hoping for a bit of insight from the more knowledgeable people here.
Edit:
User The Rocket fan hinted that it might be morse code. It decodes to CHARLIE when read forward to aft of the capsule. But why?