How do I put a picture in the frame?

[FRAQATTAQ]

I think the topic title says it all

In the customization menu, I can change several things. But in the frames, where the question mark is, how can I put a picture in there?

Thx!

[M!chel]

I have the pc - Steam version. The game uses my Steam picture.

[FRAQATTAQ]

ah, ok!

so i can`t use an individual picture just for fx3.