Dark mode is an alternative theme for apps and operating systems, that replaces the traditional light-coloured themes with darker colours. One of the main reasons for offering this alternative colour scheme is the significant reduction in glare from the screen when using your phone in the dark. A darker coloured screen gives off a lot less light than a light coloured one, making it a lot easier on your eyes, which can help prevent eye strain and make it easier to get to sleep.
Another advantage of dark mode is that devices with OLED or AMOLED screens can use less power. On these devices, the pixels themselves produce light, rather than filter a backlight, as in traditional LCD screens. With these screen types, displaying dark colours has a lower power draw than brighter colours. Displaying black even allows the pixels to be turned off entirely, further reducing power usage. Users of devices with an OLED or AMOLED screen may see a measurable battery life improvement while dark mode is enabled across the device.
How to enable dark mode in Edge
To enable dark mode in the Edge browser for Android, you need to open the in-app settings. To do so, first, you’ll need to tap the triple-dot icon, in the centre of the bottom bar.

In the top-right corner of the popup panel that opens, tap the cogwheel icon labelled “Settings” to open the in-app settings.

Next, tap the first option in the list, the one labelled “Appearance”.

In the appearance settings, tap “Theme” to manage the app theme.

There are four theme options available default, your device, light, and dark. “Default” uses a light theme for normal tabs and a dark theme for “InPrivate” tabs (Edge’s name for incognito mode). “Your device” matches the theme of your device, so if you’ve got a dark system theme enabled, then dark mode will be activated. “Light” uses the light theme for all tabs whereas “Dark uses the dark theme for all tabs.
To enable dark mode across the whole app, select “Dark” for the theme to change instantly.

Martell Nelson says
Doesn’t work for me at all. I don’t like light mode
Chuck says
Doesn’t work web pages still white on Edge browser on Android
Ervin says
Same thing to me
zeljko says
Soory but this is not true.
Even when i do as you said, still all web pages are white. I have galaxy s9 plus. Edge dont have full dark mode