Three Line Break Backtest

This is a modified version of the three line break price representation.
It is composed with 2 lines made of Close price values forming a “cloud”.
If the trend is bullish and the price breach the lower level of the green
cloud, a new bearish trend is taking place.
If the current trend is bearish and the price breakout the upper band of
the cloud, a new bullish trend is forming.
This is a “price action” indicator, signals may be filtered by long term trend
analysis with other indicators such as Supertrend for instance.

WARNING:
- For purpose educate only
- This script to change bars colors.