Change preferences in Notes on Mac
In the Notes app on your Mac, use Notes preferences to set default options for using Notes and to set, change, or reset the password for locked notes.
To change these preferences, choose Notes > Preferences.
Sort notes by
Choose the default sort order for your notes.
Important: Pinned notes always appear at the top of the notes list. See Sort and pin notes.
New notes start with
Choose the default paragraph style used at the beginning of new notes. See Write and format notes.
Choose the account used when you ask Siri to create a new note. Usually, this is your iCloud account. See Add or remove accounts in Notes.
Enable the On My Mac account
Select to store notes on your computer using the On My Mac account.
Default text size
Use the slider to set the preferred text size in notes.
Use dark backgrounds for note content
Select to keep the background of notes dark when you’re using Dark Mode. (Appears only when you’ve selected the dark appearance in the General pane of System Preferences.) See Use a light or dark appearance on your Mac.
Click the appropriate option, depending on what you want to do. For more details, see Lock your notes.
Use Touch ID
If your Mac has Touch ID, select this to be able to use your fingerprint to unlock your notes.