Cab light modification?

[JSMR]

Is it possible to modify or adjust the cab light ( 'L' key) intensity? In one loco, its way to bright. It would be nice to adjust the intensity and even the colour to a less white shade.
I can't find any info as to where the cab light code is.

Any help greatly appreciated.

[pschlik]

So, the cab light feature just sets the cab textures to use the daytime textures, as if the sun is at full brightness regardless of the actual time of day. OR already artificially decreases the brightness of the cab at night for old cabviews that don't have night textures, such as the original MSTS trains, and activating the "cab light" just restores full brightness (which I think is equivalent to what MSTS would do all the time).
While it might be possible to make that level of brightness adjustable, the issue is the mstsBin (and later) cab views with night textures, in which case turning on the cab light disables the night textures and enables the regular (daytime) textures. Unlike original textures, there isn't a 'smooth' way to change from the special night to the normal day textures, so I'm not sure much can be done here to limit the perceived increase in brightness.

[JSMR]

Ah ok. Makes sense. Thank you.
Those original developers.