STROBOT Buy Sell Zones

study(title="Strobot Buy sell Zonesh", shorttitle="strobot", overlay=true)
src = close
len = 25
out = sma(src, len)
// plot(out, color=blue, title="MA")
p1=plot(out-0.0035)
p2=plot(out-0.0015)
p3=plot(out+0.0035)
p4=plot(out+0.0015)
fill(p1,p2, color=green)
fill(p3,p4, color=red)
len2 = 100
outf = sma(src, len2) 
p5=plot(outf-0.0005) 
p6=plot(outf+0.0005) 
fill(p5,p6,color=white)