[Chameleon] How to not show a layer in XMLThemeLegend?

[Yahya Mohammad]

Hi all,
I have a layer of type Query in my mapfile and do not want this to show up in 
the legend layer list. I did not enter this layer anywhere in my 
legend_theme.xml file but it still shows up with the layer name from the 
mapfile. I tried creating <theme> and <group> tag for this layer, with 
visible=false attribute, and that got rid of the layer name, but the theme 
name was still there. I'm stuck at this point. Any help is welcome!

Thanks,
Yahya Mohammad