Is this feasible in a line chart?

[#1]

Hello all,

I have a line chart with two expressions ( Sum(Sales) and Sum(Bugdet) ). My question is:

-Is it possible and how may I color the gap-space between sum(Sales) line and sum(Bugdet) with:

1. Red if Sum(Bugdet) is greater than Sum(Sales) (that is, when the sum(Bugdet) line is over the sum(Sales) line)
2. Green if Sum(Sales) is greater than Sum(Bugdet) (that is, when the sum(Sales) line is over the sum(Bugdet) line)

??

Thanks