Yellow lines on carrier flight decks?

[DaveSD]

I just noticed two areas delineated in yellow on the Roosevelt flight deck, one pretty much enclosing elevator three and one just forward of the crotch. What are these, arming and de-arming areas? I made two cruises on Vinson while I was in the Navy, and made three trips out on carriers as a civilian (Vinson, Nimitz and Roosevelt). I didn't spend much time looking at my feet except when I was in a FOD walkdown.

I didn't check other carriers in DCS, and yes, I looked in the manual but I missed it if it was mentioned. I didn't see any images with these in an image search on Google.

Dave