Volatility Bands indicator

In general, Volatility is a magnitude of price deviation over time. In other words - an amount (in points or percentage) which extends price for 1 min (1 hour, 1 day), etc.
Volatility is essential for practical trading, more specifically:

- select the most promising (moveable) currency pair to trade

- filter out market noise

- smart calculate the Stop Loss and Take Profits

Lines explanation:

Blue histogram - candles amplitude

Orange - moving averages line for predefined period

Green&Red - channel, which based on previous line with configurable standard deviation.

Remember, volatility is very important while choosing a trading instrument and the time frame for trading. Good luck!