In the Agent selection screen, Neon previously used to smile briefly after she stops the power from the battery. In the latest update with fade, this animation now changes slightly. Neon no longer has this subtle smile and genuine innocent surprise emotion on her face, but rather is now serious - as if she is starting to grow up! Also it seems her nail polish is gone, although this might be just a indirect rendering change effect.

Check the before and after here: https://imgur.com/a/aLwVl4r