ste·ga·no·graphy ~noun~
The art, science, and practice of communicating in a way that hides the existence of the communication.
ste·ga·no·saurus ~noun~
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Three years ago, I looked into making my own password manager frontend. The idea was to clean up the user interface of Bitwarden by replacing it with a native solution. This project never really took off (the pain must not have been enough), but I did create Steganosaurus as a side project in a few weeks.
My goal was to use Bitwarden's API (Application Programming Interface). But I wanted to store additional information with my item. In my case, it was a color. It could have been a label, or for that matter, any binary data.