Qelectrotech, stupid question!

Hello everyone,

I have a little question that may seem silly concerning Qelectrotech and mainly the colors of the lines.
I am indeed trying to have my ground lines in green and yellow, but when I choose "dashed line" in green, then a "secondary color" in yellow, the line remains green.

How do you do it on your plans to have the green/yellow lines?

Thanks in advance slope!!