WPS tag to tell if an MP3 track is stereo/mono

[micksharpe]

I am trying to create my own theme and I would like to show if an MP3 track is recorded in stereo or mono. Is there a tag to get this information? Apologies if this is an old question. I've tried searching but with no success. I am using an Archos Jukebox Recorder V1. Many thanks.

[xpmule]

I don't see it looking here..
http://www.rockbox.org/wiki/CustomWPS#File_Info

So i don't know.
But that is a great resource to look at if you did not see it