Contrast

[Sarah]

To stand in opposition; to exhibit difference, unlikeness, oropposition of qualities.The joints which divide the sandstone contrast finely with thedivisional planes which separate the basalt into pillars. Lyell.

[Sarah]

A difference: without one side, there is no other side.
if there was no contrast, there would only be [apathy]

[Sarah]

Contrast is what unattractive people with light to medium skin tones use to overexpose their photographs into a somewhat alien-like being that is so ambiguous that it might be hot. There is usually a large, vague blast of light where there would normally be a nose on an actual human being.
Contrast is a form of visual trickery online similar to a [FGAS]. It can hide a sizeable nose, unattractive bone structure, acne, copious amounts of unwanted facial hair and pretty much anything. Be weary of the glowing siren on your internet message chat session, for underneath the heavenly glow a beast may lurk.

[Lanell]

Examine in [order] to [note] [significant] differences between two or more things

[Becky]

The state of being strikingly different from something else in juxtaposition or close association.

[Julian]

an obvious difference between two or more things: