A CHANGE of background color indicates a trade opportunity :
Cyan background = BUY
Purple background = SELL

The bullish signals seem to be better than the bearish ones.

Based on the "Willy" indicator.
Don't change the parameters unless you fully understand the consequences.

Use with brains and caution :)
Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

Disclaimer

The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.

Want to use this script on a chart?
study(title="MAGNUS™", shorttitle="MAGNUS™")

length = input(21, minval=1)
upper = highest(length)
lower = lowest(length)

out = 100 * (close - upper) / (upper - lower)
src = out, len = input(54, minval=1, title="MA Short Length")
lenm2 = input(13, minval=1, title="MA Long Length")
len0 = input(8, minval=1, title="Willy Smoothing")

m0 = ema(out, len0)
m1 = ema(out, len)
m2 = sma(out,lenm2)
col = m0>m1?aqua:fuchsia

plot(out, color = green)
plot(m0, color = white)
plot(m2, color = red)
plot(m1, title="EMA", color=orange)
band1 = hline(-20)
band0 = hline(-80)
fill(band1, band0)
bgcolor(col,transp=92)