it reads the as well which you could see it on the background color.
once the price closed over the green line then you can make a long order (buy) and the stop loss if the price closed under the red line, and vice versa.
the black line is just to make it as additional level
Long ==> price closed over black and green lines ### stop loss if price closed under the black and red lines
short ==> price closed under black and red lines ### stop loess if price closed over the black and green lines.
Background refers to the movements so if it's green means people are buying and if red means selling.
I attached and special moving average indicator so you can make them as levels once you see price is closing to one of them.