The EveningStar Expert Advisor trades the "Evening Star" pattern. The below image shows an example of operation of the underlying indicator, while the EA does not draw anything on the chart.

Lot is calculated based on the risk value as a percentage of free margin.
For more information about the "Evening Star" pattern please see the EveningStar indicator code.
Expert Advisor parameters:
Translated from Russian by MetaQuotes Ltd.
Original code: https://www.mql5.com/ru/code/18507
EveningStar
The indicator shows the "Evening Star" pattern.
CCheckNewCandle
The class monitors the emergence of a candlestick
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The XROC2_VG indicator with the timeframe selection option available in the indicator input parameters.
Exp_XROC2_VG_Tm
The Exp_XROC2_VG_Digit_Tm Expert Advisor trades based on signals generated by the XROC2_VG oscillator.