The idiomatic expression "to see someone in something" means to view or perceive that person as having certain qualities, characteristics or behaviors associated with what is being referred to. Full definition
To make burger sauce as seen in photos below, mix high quality ketchup and mayo (or homemade versions) in equal parts. (predominantlypaleo.com)
Once I showed a congregation the photograph of a woman many of them knew and loved, someone they had not seen in person for years. (religion-online.org)
As we age our brain can actually shrink, yet we don't see this in people who regularly exercise. (womenshealthandfitness.com.au)