Sorry the only platform I've ever used is IB's TWS. Perhaps a forum member using TC 2000 can chime in and help. Perhaps the yellow band is live trading and it goes away when on SIM? Either way I would bet my house that was not SIM.
So apparently he uses separate screens for charting and trading.I'm not familiar with that concept myself but whatever.See if this link works. Frequently Asked Questions - Qullamaggie
He actually won big on his fake trade, because he probably gained a million more followers for his YT channel.
So that means he is fake. Why doesn't he show us the chart he TRADES on? Think about it. That is the very first question he has in a FAQ. He has a damned FAQ about his channel/site/whatever. That should tell you something.
Why dont you ask him yourself? He post occasionally on Twitter. Call him a fraud and a liar who trades on SIM and maybe he'll reply. He's answered one of my questions before. Let me know what he says. I seriously doubt he's ever traded sim in his life.