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UPDATE!
Now sho yellow bar when sell signal and blue bar when buy signal.
```study(title="Ichimoku Cloud", shorttitle="Ichimoku", overlay=true)

conversionPeriods = input(9, minval=1),
basePeriods = input(26, minval=1)
laggingSpan2Periods = input(52, minval=1)
EMAno1 = input(21, minval=1)
EMAno2 = input(144, minval=1)
EMAno3 = input(377, minval=1)
displacement = basePeriods

donchian(len) => avg(lowest(len), highest(len))

conversionLine = donchian(conversionPeriods)
baseLine = donchian(basePeriods)

plot(conversionLine, color=red, title="Conversion Line")
plot(baseLine, color=blue, title="Base Line")
plot(close, offset = -displacement, color=green, title="Lagging Span")

p1 = plot(leadLine1, offset = displacement, color=green,
p2 = plot(leadLine2, offset = displacement, color=red,

ema1=ema(close,EMAno1)
ema2=ema(close,EMAno2)
ema3=ema(close,EMAno3)

//sell signals
signal1 = baseLine > conversionLine

signal2 = close <= ema1
signal2a = close <= ema2
signal2b = close <= ema3

signal3 = close<bottomcloud
signal3a = close[1]>bottomcloud[1]
signal3b = bottomcloud<uppercloud

signal4 = close<low[displacement]
sellsignal = signal1 and signal2 and signal2a and signal2b and signal3 and signal3a and signal3b and signal4
plotchar(sellsignal, char='S', color=red, location=location.abovebar)
barcolor(sellsignal ? yellow : na)

signal3x = close<uppercloud
signal3ax = close[1]>uppercloud[1]
signal3bx = bottomcloud>uppercloud
sellsignal2 = signal1 and signal2 and signal2a and signal2b and signal3x and signal3ax and signal3bx and signal4
plotchar(sellsignal2, char='S', color=red, location=location.abovebar)
barcolor(sellsignal2 ? yellow : na)

nsignal1 = baseLine < conversionLine

nsignal2 = close >= ema1
nsignal2a = close >= ema2
nsignal2b = close >= ema3

nsignal3 = close>uppercloud
nsignal3a = close[1]<uppercloud[1]
nsignal3b = bottomcloud<uppercloud

nsignal4 = close>high[displacement]
buysignal = nsignal1 and nsignal2 and nsignal2a and nsignal2b and nsignal3 and nsignal3a and signal3b and nsignal4