Ema plotshape crossing

//@version=3
study("Ema_Signal", overlay = true)

fast = input(6)
slow = input(22)
Swing = input(50)

ma1 = ema(close,fast)
ma2 = ema(close,slow)

crossover(ma1,ma2)

plot(ma1, title = "Fast Ma", color = black, style = line, linewidth = 1,transp = 70)
plot(ma2, title = "Slow Ma", color = green, style = line, linewidth = 1,transp = 70)

plotshape(close,color = red,style=shape.arrowdown)