Board Thread:General Discussion/@comment-24573226-20160526025838/@comment-26397825-20160526034107

They also foreshadowed Ruby's eyes in the V2 opening. We get a great screenshot of her eyes over Beacon, then the screen fades to white using the same effect they used for when her silver eyes activated in V3.

It may not seem like much at first, but in light of the silver eyes reveal it becomes obvious that it was an attempt at foreshadowing.