Here's why:
* Foreground refers to the part of a scene or image that is closest to the viewer and appears most prominent.
* Background refers to the part of a scene or image that is furthest from the viewer and appears less prominent.
However, depending on the context, other antonyms could be:
* Distance (if discussing spatial location)
* Back (if discussing a physical location)
* Secondary (if discussing importance)
* Unimportant (if discussing significance)
It's important to consider the specific context when choosing an antonym.