Popup Menu FontColor

Is there a way to set a fontcolor on a popup menu? or adjust the selection background color. I can’t ask the users to adjust their theme. The highlighted selection font of white almost disappears with the background.

Ubuntu 13.10 64bit

What is target platform?
Mac? Win? Linux? Web?

Target is Linux desktop for now, but I’d like a similar behavior on Mac and Windows as well. If I can get it.

Well, I presume they use a GtkComboBox there, but I don’t see functions to style it differently.
If someone has an idea, maybe I could implement something for you there.