You can configure a running Zettelstore by modifying the special zettel with the ID [00000000000100](00000000000100).
This zettel is called *configuration zettel*.
The following metadata keys change the appearance / behavior of Zettelstore.
Some of them can be overwritten in a [user zettel](00001010040200), a subset of those may be overwritten in the zettel that is currently used.
See the full list of [metadata that may be overwritten](00001004020200).