Forge Island Easter egg?

I was just messing around on the new Forge islands, and noticed if you use promethean vision while looking at any of the islands the edges of the island glow and bright white color.

When I saw this I instantly thought Halo rings, but it may just be me. If anyones wants to try just do what I did and reply.

That is a safety tool. In promethian vision it is hard to see edges, and on huge plateaus, you NEED to see those edges. Don’t wany anyone falling off the edge.

Ahhh, I see. Now I’m depressed…

I herd there is a Pelican hidden under the water near the large island aria.