Introduction
An exit indicator for MACD, good for triggering order exit via MACD.
It works by considering <current MACD hist> and the <max MACD hist after last flip>.
Then, it just exits when the % change in these values surpasses a threshold.
Indicators
blue line - MACD
orange line - Signal
green/red columns - Histogram
aqua background - Last Histogram Flip
fuchsia background - Max abs(Histogram) value after last flip
orange Background - Exit region