Hidden inside EKO(misc, 50 points)
"Find the hidden flag in the EKO pixels!"
If we take a look at the ctf.css file, we'll see a reference to a background image at static/img/background.png. If you take a look in the top left corner, we can see the flag. I'll be honest it took me like a day before I saw this because I was over-complicating it.