OTP Display name in Authenticator Apps

By default when you register (QR scan) the OTP the display name in the OTP App is the Realm Name, how do change that in keycloak to default something else? I tried /login/messages/messages_en.properties in my theme.

#authenticators
otp-display-name=Partner File Share

But that didn’t work, any ideas how to set the Display Name for OTP?