Problem with legend label boxes

I have a code to plot few graphs in one frame.

using Tlegend I showed all the graphs labels, with the graph colors and their corresponding names.

However the graph color appear within a yellowish color box and I want to change the box color or remove the boxes.
(attached is the part of plot that I have problem with.)

I tried SetLegendFillColor (kWhite) and also manually by right clicking on the labeles boxes I chose SetEnteryOption , I just wrote color and it just works once for only one label.

Is there any possible way for changing the boxes colors?

Thanks for your help


when using AddEntry, do you specify an “F” option? If so, that may be your problem. For your plot, “PE” should be enough.