How to Set Desired Legend Color

[#1]

Hi i want to set desired Legend Color in my qvw. I worte the expression on the

=

pick(match("F3",'Level1','Level2','Level3','Level4'),red(),blue(),green(),orange())

in the BG color expression of the Dimension.

But its not reflecting in the chart. Kindly help me in this regard. Thanks in Advance...

[kji]

Put it in the Background color expression of the expression instead.

[#3]

I put it in BG(background) Color Expression only...But its not working for me 😞