This indicator tries to identify a local bottom or a local top in the trend by using volume, RSI and raw candle data.
If the candle is Aqua and has a B, it indicates a possible local bottom.
If the candle is Purple and has a T, it indicates a possible local top.
If the candle is Orange and has a R, it indicates a possible "reversal" or trend change confirmation.
This indicator is meant to be used as a support to your analysis, it should not be used at his own. You should look for confluence with other indicators.