The Excalivel script adds the price levels to the chart. The values of levels are determined based on the local Highs and Lows. Color intensity of each level reflects its strength. script input parameters:

1. Timeframe - Chart period of the analyzed data;
2. Period - Amount of data used for the analysis;
3. Distance - The minimum distance in points between two adjacent extremums;
4. Color - The color of the levels;