Word of the day: skeuomorphism
This is the use of a derivative object that retains ornamental design cues to a structure that was necessary in the original.
I know, you’re no wiser. An example is when note-taking features on computers or apps use decorative elements that remind us of paper-based applications.
You’ll find a fuller discussion of the use of skeuomorphs online in this short article and you can learn about the wider use of skeuomophs on this Wikipedia page.