Adding Fibonacci retracement levels of the current structure
In this new version, the user can display up to 5 Fibonacci retracement levels that will be applied to the current structure.
The user can also modify the value, color, style, and thickness of the line associated to each retracement.
The default values are as follows: 0.786, 0.705, 0.618, 0.5, and 0.382.