[db48x]

It’s true that light of different frequencies bends a different amount, but that’s not really what this simulation shows. This simulation shows that the lens forms an image of both light sources simultaneously, even though they are emitting at different frequencies. The light inside the lens looks uniformly mixed but still comes out in such a way that the two frequencies separate and form two distinct images.

Of course, you might consider it to be even more remarkable that two distinct images are formed even when the two lights are the same color, since then there is no longer any obvious way to distinguish the light from the two sources.