In fact users of practically every software or app does request for the dark mode which is stated to have several advanced features and functions. Of late the Dark Mode is one of the most widely requested options on most of the platforms. 3132019 Enable Dark Mode.
The dark mode is more useful.
3132019 Enable Dark Mode. 12112020 Android 90 Pie added an option to toggle between dark and light themes but the process is a little different than Android 10. Dark mode is finally rolling out for Gmail on Android. Other OEMs may or may not support this behavior.