Alcides Segovia wrote on Aug 9^th, 2018 at 12:16am:

Right now the texture swap when we are going into night time is making the entire aircraft not use an alpha map or diffuse texture when the night lights get turned on. A system such as the Truelight from TFDI or FSlabs even the other lighting allows the diffuse to still be on at night allowing us to see the lights better during the day and we could keep the diffuse map on the exterior model to see reflections.

The 757 has the diffuse on around the clock, so there's no texture swap. Just lightmaps applied over the diffuse as per the sim standard logic/timing.

Alpha is probably gone at night, but again as per the sim standard logic/timing.

As far as I know Truelight/FSlabs are FX based lights and have nothing to do with textures.