The MRO2 Forex Indicator is a popular and free tool for traders who use the MT4 platform. The indicator displays a colored line on the chart, which changes its color depending on the strength of the trend. When the line turns green, it indicates a bullish trend, while when it turns red, it indicates a bearish trend. This makes the MRO2 Forex Indicator a useful and versatile tool for traders who want to maximize their profits in the forex market.