Oscillator is combining MACD with (double) Stochastic oscillator. When both, MACD and (double) Stochastic are aligned with direction of trend, it improves probability and strength of such signal. There's possibility to also activate second Stochastic as additional confirmation of the signal. One of winning setup is to keep MACD settings standard - 12,26,9 and both Stochastics with slightly longer settings - 14,7,7 & 21,14,14. Figures at top are displaying trend coming from MACD . Background is coloured when all signals are aligned.
If you're interested in access for oscillator, please DM me on Tradingview.com ;)