study(title="Close + Pakya 3 MA + monitor lines", overlay=true, precision=3)

plotclose = plot(close, title="close", color=white, transp=100)
plot20 = plot(sma(close, 20), title="shortMA", color=red, transp=0)
plot50 = plot(sma(close, 50), title="midMA", color=lime, transp=0)
plot200 = plot(sma(close, 200), title="longMA", color=aqua, transp=0)


ma50 = sma(close, 50)
ma200 = sma(close, 200)

bgcolor(close > ma50 and ma50 > ma200 and ma50[1] <= ma200[1] ? white:na, transp=0)