PB
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © tomahawk3999

//@version=5
indicator("PB",overlay=true)

l1 = input(20,"length")

a1 = ta.sma(close,l1) * 1.02
a2 = ta.sma(close,l1) * 1.01
a3 = ta.sma(close,l1) * 0.99
a4 = ta.sma(close,l1) * 0.98

p1 = plot(a1,color=color.red)
p2 = plot(a2,color=color.red)
p3 = plot(a3,color=color.green)
p4 = plot(a4,color=color.green)
fill(p1,p2,color=color.new(color.red,70))
fill(p3,p4,color=color.new(color.green,70))