03.08.2016, 17:46
If you are trying to change the light color, it's not possible. Obviously only textures can be changed.
However, you could use the other girofar version (without lights), then create another object that has yellow light and make its texture invisible. That way you have a fake-yellow girofar. The lights of object 2 will stay if you use (...)MaterialText with an empty text and no background color.
EDIT: Model 18646 has yellow light, but it's constant light. Used it for something similar so I know that the light will stay even if you make the texture invisible.
However, you could use the other girofar version (without lights), then create another object that has yellow light and make its texture invisible. That way you have a fake-yellow girofar. The lights of object 2 will stay if you use (...)MaterialText with an empty text and no background color.
EDIT: Model 18646 has yellow light, but it's constant light. Used it for something similar so I know that the light will stay even if you make the texture invisible.