Say I wanted to make a Lightbar all orange/amber, by changing the lens and ELS colors.. how would I do that?

You would have to use a program like photoshop, gimp 2.8 or Paint.NET( any image editor like that) to edit the texture. This tutorial should help.

It's different to almost every car mod. If you give us the link to the mod, we might be able to help. It all depends on the mapping of the lightbar. Usually emerglights.png contains the lightbar glasses' color, and emerglights_emis.png contains the actual els lights, which light up.

Say I wanted to make a Lightbar all orange/amber, by changing the lens and ELS colors.. how would I do that?

do you mean like this 

It's different to almost every car mod. If you give us the link to the mod, we might be able to help. It all depends on the mapping of the lightbar. Usually emerglights.png contains the lightbar glasses' color, and emerglights_emis.png contains the actual els lights, which light up.

 

Thank you to everyone who posted, your posts helped a lot! @ SGT KANYO, I am using BxBugs123's Whelen Edge 9000 ELS

Thank you to everyone who posted, your posts helped a lot! @ SGT KANYO, I am using BxBugs123's Whelen Edge 9000 ELS

 

 

Yeah I'm pretty sure it's emerglights that contains the lightbar's glasses, probably the one that looks very close to the whelen edge. If I remember well it should be on the left bottom part of the texture. Try to change the red and blue colors to amber, but remember to use a transparency value lower then 255 for it, otherwise it won't be see through.

The emerglights_emis part will be an easy one, you just have to make all the red and blue lights amber.