Indicator is designed to paint a doji, the size of which can be adjusted in settings.
Provided there is a valid doji, the following candle is a 'FU candle' or an 'Institution' candle. This candle wicks above/below the doji and takes liquidity from above or below.
Colours can be changed
Red = Doji candle
Yellow = FU candle
Example shown on the 1hr chart, red doji indicating a change of trend upwards, the FU candle (yellow) takes liquidity from above and sweeps down.