Sauban Bin Usman

How about you render a stripe above the problem's name on scoreboard that is colored accordingly. Something like this: 

There's an intra college coding contest coming up in my university. I am in the organizing team. We used to use the PC^2 automatic judging system before, but it was...

Wow.. it looks awesome. Regarding the balloon images, I would suggest against them, unless you flatten the images and remove the shine from the balloon. Otherwise, it will look odd...

I meant the following:  But the black stripe isn't looking very nice. Maybe you need to think of something else.

Outline looks ugly to be honest. Another idea is to draw a rounded square behind the problem name like you are doing for problem submissions for individual teams in the...