Average True Range Refurbished

💡 Objective
This script is a rebuild of the pre-existing ATR indicator, with improvements and fine-tuning.

🪄Improvements

1. Normalization option (range 0 to 100)

2. Optional calculation of the ratio between current volatility and average volatility

3. Optional smoothing

4. Show a moving average

5. Show Bollinger Bands with 3 bands

6. Change bar colors according to ATR and Bollinger Bands

📚 Definition

'The Average True Range (ATR) is a tool used in technical analysis to measure volatility. Unlike many of today's popular indicators, the ATR is not used to indicate the direction of price. Rather, it is a metric used solely to measure volatility, especially volatility caused by price gaps or limit moves.'
(TradingView)

Release Notes:

Some fixes and improvements.