The JFatl smoothed fast trend indicator which fills the chart space with a colored background. The JFatl itself serves as the color separation line.

The indicator uses SmoothAlgorithms.mqh library classes (copy it to <terminal_data_folder>\MQL5\Include). The use of the classes was thoroughly described in the article "Averaging Price Series for Intermediate Calculations Without Using Additional Buffers".

Fig.1. The ColorJFatl_Cloud indicator