UT night lighting confusion

Have any of you changed the light color using the UT texture configuration tool?

I have all the UT products for FS9 installed.  In the texture configuration tool, I have changed pavement brightness, traffic density and enabled enhanced urban night textures with no problem.

I tried changing the lights from "High Pressure Sodium" to "Mercury Vapour" and I don't see any difference in the sim.

With night lighting enabled, all types of lights are shown.  Yellow, orange and red are what I see on major roads, highways and smaller roads and there are the green lights in residential areas and smaller roads.

I thought most, or all of the lights should be glowing a greenish/blue colour after I picked "Mercury Vapour" but it looks the same.  What exactly does changing the light setting do?

My FS9 settings are maxed and there are a lot of light points but I don't see any difference by picking a different light in the texture configuration tool.

I'm also a little confused with the "Lights and Traffic Fade Away Outside Urban Areas" setting.  I read the manual but still unclear as to what they mean.  If I'm understanding it correctly, disabling the check box should extend the draw distance for the night lights, right?

All testing was done on the default Cessna/KSEA flight at night.

Any help greatly appreciated.