[SofaKng]

I'm using XBMC via HDMI on an older TV and it only supports studio level color (16-235) so the UI is nearly black and it's very difficult to see anything.

I've tried enabling the "VDPAU Studio Level Color Correction" and it doesn't seem to do anything but I think that's only for video playback (and even then it doesn't seem to do anything but that's a different issue).

I'm using an nVidia ION board...

[kozzie]

That's why I moved to Windows XBMC.

[jmarshall]

Just turn up the brightness and contrast on the TV and be done with it. There's correct values floating about somewhere - search.