Hello to all my friends! I started the CP a time back and was advanceing but then I get stuck in blue. What is the problem? How to get purple (or maybe yellow o_O) username?

I have tryed everything but still stuck inb blue. I read all blogs in the catalog but still stuck. Any red (or maybe nutella :O) coders can help me? What is the trick to overcome the blue? I will practice hard if you teach me!!

thank you very much!

P.S. sorry for bad english and thanks to @MikeMirzayanov for codeformes and polygon platmforms and congratulations for advancing polygon out of beta version!!