What is that?

So when you log into TAKP forums, when i click the "Forums" tab, a brief picture, something war-like, pops up and then disappears where "The Al'Kabor Project" image pops up. Pure curiosity. What is this?

Edit- if you don't see it try clicking "Forums" a few more times

 

Lol I get this when my mobile internet is running really slow. To me it looks like a d day picture

 

Just the default theme background image loading before the TAKP logo loads in.

 

Yeah but, what is it? Why is that the default?

 

Because there are many themes available for forums and this is the one the admins picked. Just a random graphic lol.

 

Some screenshots of the event