The indicator is the Awesome Oscillator but with Exponential Moving Averages . I simply replaced SMA by EMA in the calculus and added, as an option, smoothing with a variable period. It reduces greatly lags and is more efficient when the price moves big.
It is used the same way the standard Awesome Oscillator works. You can refer to the TradingView page about this simple indicator.
I added smoothing as an option too. You can add it or remove it and set the period you want in the settings of the indicator.