Some needed changes to preferences

I have been meaning to request this for a while. In the preferences, the theme, desk light color and brightness and other settings i(timeout etc) should really be desk specific.

I had a networked show, with my hedgehog in dimmer world. When I changed to blue desk lights, BAM! out went the lights on the hedgehog. My tech was surprised, since he was using the hedgehogs light to read a magazine.

Can we make those desk specific? That way each person can set the desk brightness etc, to what is comfortable for them.