Change the background color of a menu bar item in Linux

I have a need to change the background color of a menu bar item.

I can do this using Windows 7, python 2.6.4, wxpython 2.8.10.1

I can not do this using Linux Mint 15, python 2.7.4, wxpython 2.8.12.1

Is my attached sample program coded correctly?
Can this be done on Linux based machines?

Thanks,
Bruce

menuTest.py (1.01 KB)

This is something I noticed also, along with MenuItem Icons showing up; when I was testing on linux.

As far as the menuIcons, I recall there was a OS setting somewhere that regulated this stuff.

So maybe the showing of MenuItem background colors might be similarly related.

For example, maybe your Linux distro is overriding them…
Can someone/others on/with Linux test poster’s OP attachment and report back if this works for them or not…?

I can’t seem to on kubuntu/mageia (or at least can’t find the settings to change menu behavior).
Other distros/settings…?