Flight Director set, Flight Director bars

Hello,

I'd like to modify the size and color of the flight director set located on the instrument panels of the different aircrafts, I mean the set of two triangular lines that match the shape of the airplane symbol on the primary flight display or sometimes the horizontal and vertical bars that do the same thing.

I can't find these gauges either in the game's file list or with FS Panel Studio.
Ingame Flight Director sets are purple or pink and rather small, but usually they are yellow and a bit larger...

Thanks for your help.

LLuc