User manual

148
It offers three color schemes with different level of contrast, allowing
you to set the auto start and off time, and can even adjust to the
sunrise and sunset.
Go to Settings - Display & brightness - Dark Mode - Dark Mode settings
Make Your Own Ringtone
A ringtone can be customized through an easy-to-use slide panel. Just
select the musical tones and rhythms to adjust the music in real time.
Receiving tons of notifications can be annoying. Tone Tunes links
consecutive notification tones to form a single melody.
Go to Settings - Sound & vibration