Once you are logged into the Admin portal you can change between "Dark" and "Light" or allow the browser to decide depending on your computer preferences.
Choose Dark or Light Mode
Once you are logged into the Admin portal...
Click on your initials in the top right of the screen
Choose the "half moon" icon for "Dark" mode
Choose the "sunshine" icon for "Light" mode
Choose the "computer" icon to take the dark/light mode setting from your computer