The High/Low indicator utilizes the measuring of local highs and lows as well as local peaks and troughs to identify possible divergence in the price action.
Purple oscillator = Higher Timeframe's price measurement
Purple high triangle = A local high on the higher timeframe has been made
Purple low triangle = A local low on the higher timeframe has been made
Red high triangle on the purple oscillator = A local high on the higher timeframe has been made and is deemed a bearish divergent high
Green low triangle on the purple oscillator = A local low on the higher timeframe has been made and is deemed a bullish divergent low
Orange oscillator = Current Timeframe's price measurement
Orange high triangle = A local high on the current timeframe has been made
Orange low triangle = A local low on the current timeframe has been made
Red high triangle on the orange oscillator = A local high on the current timeframe has been made and is deemed a bearish divergent high
Green low triangle on the orange oscillator = A local low on the current timeframe has been made and is deemed a bullish divergent low