@ Riot 3D Artists: The new Star Guardian game mode; do the new "void" skins have emissive textures?

Hey Riot Artists,

I was watching a stream of the new game mode and couldn't help but notice that the green parts of the custom "void" skins have a sort of (baked) emissive to them. I know that league's visual runs only with diffuse maps (with baked AO), but those new skins show something completely new and awesome. Is it a new texture map type? Or did the artist just really make some pretty realistic looking glows through just baking emissive into the diffuse map? It also seems that the Crabgot Urgot skin also has this emissive effect on his loaded shotgun knee visuals (at least it's most noticeable on that skin).

Link to the Star Guardian game mode stream if anyone wants!

Thanks and hope to hear from you guys.