How the title says, it's a EMA9 EMA45 EMA90 plotted on a 12H *fixed* timeframe. The reason: 12H timeframe is only for "pro subscriptions" for some reason ;) To be honest it's the most accurate timeframe for this kind of things.
I hope you appreciate it.
Let me know any suggestion, I can also add it to other scripts that I made, so you don't waste a whole indicator slot just for EMAs :)